FIRM WEAR SKR3 EZ

For the life of me I cannot find firm wear for SKR3 EZ.  Plenty places have it for SKR3, BUT that board has 741 chip(STM32H741.  The SKR3 EZ has the STM32H723 chip   I'm coming to the conclusion  that the only firm wear is klipper for this board.  I've replaced the board in my printer 3 times with no issue But this EZ board is a beast  