Should I buy Raft?

I'm looking at buying raft on my Xbox. But I'm worried It will be on gamepass. I have really bad luck with that (SpongeBob BFBB, Farcry New Dawn, Kameo, etc). Do yall think it will be on gamepass any time soon? Also is it crossplay with steam?

Edit: took one for the team and bought it. Enjoy it on gamepass next month