A local beach near me in Ireland has people parking exclusively on the beach, that said, it's a massive breach with plenty of space.
I never have heard of anyone's car getting overtaken by the tide, but perhaps the local farmer has pulled a few people out
Another local beach is as you described, no parking on the beach, walk on only. I think it depends on the kind of beach and the way things are set up
Just wanted to add to this for those who don't know, windows games work through a comparability later called Proton, it usually works great, but some games don't work well with it. (Mostly anticheat and stuff like that causing issues IIRC) I would always recommend checking ProtonDB before purchasing any game without explicit Linux support