With the exception of Pro Clubs and any of the co-op specific modes, every other online-enabled mode features cross-platform play in FC 24.
Here’s every mode FC 24 crossplay supports:
FC 24 may be split up into two versions of the game, but the transfer markets aren’t segmented into the same pools as the crossplay groupings. FC 24 on PC has its own transfer market, it doesn’t share listings with any other platform.
Here are the platforms which feature a shared FUT transfer market pool in FC 24: