diff --git a/bigframes/__init__.py b/bigframes/__init__.py
index 419899a4ae..a3a9b4e4c7 100644
--- a/bigframes/__init__.py
+++ b/bigframes/__init__.py
@@ -14,13 +14,26 @@
 
 """BigQuery DataFrames provides a DataFrame API scaled by the BigQuery engine."""
 
-from bigframes._config import option_context, options
-from bigframes._config.bigquery_options import BigQueryOptions
-from bigframes.core.global_session import close_session, get_global_session
-import bigframes.enums as enums
-import bigframes.exceptions as exceptions
-from bigframes.session import connect, Session
-from bigframes.version import __version__
+import warnings
+
+# Suppress Python version support warnings from google-cloud libraries.
+# These are particularly noisy in Colab which still uses Python 3.10.
+warnings.filterwarnings(
+    "ignore",
+    category=FutureWarning,
+    message=".*Google will stop supporting.*Python.*",
+)
+
+from bigframes._config import option_context, options  # noqa: E402
+from bigframes._config.bigquery_options import BigQueryOptions  # noqa: E402
+from bigframes.core.global_session import (  # noqa: E402
+    close_session,
+    get_global_session,
+)
+import bigframes.enums as enums  # noqa: E402
+import bigframes.exceptions as exceptions  # noqa: E402
+from bigframes.session import connect, Session  # noqa: E402
+from bigframes.version import __version__  # noqa: E402
 
 _MAGIC_NAMES = ["bqsql"]
 
diff --git a/bigframes/dataframe.py b/bigframes/dataframe.py
index c226e5010a..b195ce9902 100644
--- a/bigframes/dataframe.py
+++ b/bigframes/dataframe.py
@@ -332,7 +332,7 @@ def dtypes(self) -> pandas.Series:
 
     @property
     def columns(self) -> pandas.Index:
-        return self.dtypes.index
+        return self._block.column_labels
 
     @columns.setter
     def columns(self, labels: pandas.Index):
diff --git a/bigframes/display/anywidget.py b/bigframes/display/anywidget.py
index eca435e960..40d04a1d71 100644
--- a/bigframes/display/anywidget.py
+++ b/bigframes/display/anywidget.py
@@ -23,6 +23,7 @@
 import threading
 from typing import Any, Iterator, Optional
 import uuid
+import warnings
 
 import pandas as pd
 
@@ -111,16 +112,7 @@ def __init__(self, dataframe: bigframes.dataframe.DataFrame):
         self.page_size = initial_page_size
         self.max_columns = initial_max_columns
 
-        # TODO(b/469861913): Nested columns from structs (e.g., 'struct_col.name') are not currently sortable.
-        # TODO(b/463754889): Support non-string column labels for sorting.
-        if all(isinstance(col, str) for col in dataframe.columns):
-            self.orderable_columns = [
-                str(col_name)
-                for col_name, dtype in dataframe.dtypes.items()
-                if dtypes.is_orderable(dtype)
-            ]
-        else:
-            self.orderable_columns = []
+        self.orderable_columns = self._get_orderable_columns(dataframe)
 
         self._initial_load()
 
@@ -128,6 +120,24 @@ def __init__(self, dataframe: bigframes.dataframe.DataFrame):
         # Also used as a guard to prevent observers from firing during initialization.
         self._initial_load_complete = True
 
+    def _get_orderable_columns(
+        self, dataframe: bigframes.dataframe.DataFrame
+    ) -> list[str]:
+        """Determine which columns can be used for client-side sorting."""
+        # TODO(b/469861913): Nested columns from structs (e.g., 'struct_col.name') are not currently sortable.
+        # TODO(b/463754889): Support non-string column labels for sorting.
+        if not all(isinstance(col, str) for col in dataframe.columns):
+            return []
+
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore", bigframes.exceptions.JSONDtypeWarning)
+            warnings.simplefilter("ignore", category=FutureWarning)
+            return [
+                str(col_name)
+                for col_name, dtype in dataframe.dtypes.items()
+                if dtypes.is_orderable(dtype)
+            ]
+
     def _initial_load(self) -> None:
         """Get initial data and row count."""
         # obtain the row counts
diff --git a/bigframes/display/html.py b/bigframes/display/html.py
index 6102d1512c..ef34985c8e 100644
--- a/bigframes/display/html.py
+++ b/bigframes/display/html.py
@@ -363,7 +363,13 @@ def repr_mimebundle(
 
     if opts.repr_mode == "anywidget":
         try:
-            return get_anywidget_bundle(obj, include=include, exclude=exclude)
+            with bigframes.option_context("display.progress_bar", None):
+                with warnings.catch_warnings():
+                    warnings.simplefilter(
+                        "ignore", category=bigframes.exceptions.JSONDtypeWarning
+                    )
+                    warnings.simplefilter("ignore", category=FutureWarning)
+                    return get_anywidget_bundle(obj, include=include, exclude=exclude)
         except ImportError:
             # Anywidget is an optional dependency, so warn rather than fail.
             # TODO(shuowei): When Anywidget becomes the default for all repr modes,
diff --git a/bigframes/pandas/io/api.py b/bigframes/pandas/io/api.py
index b8ad6cbd0c..fade0558ac 100644
--- a/bigframes/pandas/io/api.py
+++ b/bigframes/pandas/io/api.py
@@ -354,15 +354,14 @@ def _read_gbq_colab(
         )
         _set_default_session_location_if_possible_deferred_query(create_query)
         if not config.options.bigquery._session_started:
-            with warnings.catch_warnings():
-                # Don't warning about Polars in SQL cell.
-                # Related to b/437090788.
-                try:
-                    bigframes._importing.import_polars()
-                    warnings.simplefilter("ignore", bigframes.exceptions.PreviewWarning)
-                    config.options.bigquery.enable_polars_execution = True
-                except ImportError:
-                    pass  # don't fail if polars isn't available
+            # Don't warning about Polars in SQL cell.
+            # Related to b/437090788.
+            try:
+                bigframes._importing.import_polars()
+                warnings.simplefilter("ignore", bigframes.exceptions.PreviewWarning)
+                config.options.bigquery.enable_polars_execution = True
+            except ImportError:
+                pass  # don't fail if polars isn't available
 
     return global_session.with_default_session(
         bigframes.session.Session._read_gbq_colab,