No Fields on Components ? (Unity 2021 3.20f1, Mac M1)

Hello ! I installed and have been playing uREPL. It's great !

When I try to Inspect a Component on a GameObject, I do not see many fields. Booleans seem to work, but most Components print "No Available Fields ..."

I tried upgrading to .Net 6, didn't seem to help. Using Mono. Lots of commands do work, so not sure what it could be in my setup. 