Cross-platform gameplay disabled

So I’ve just moved from a 4 to a PS5 and my option to prevent cross-platform battles is disabled.

That a Playstation multiplayer setting I’ve got wrong somewhere or… can I not exclude PC-players with a PS5??🤔

You are forced to play cross platform

Wait. Was that reply a question or a statement??

Whatever. It got cleared and I’m keeping it console only again.

Which is nice.🤗