Mine keeps on crashing as well since the latest patch. File integrity is good. Seems to happen during world save in the plains biome.

"Game Unplayable On My System"

there, I fixed it for you

I suppose you've actually done something like check file integrity, etc. to avoid being asked all the classic debugging questions? That's always a plus....

Do you have mods installed? If so, you either have to delete them or update them to match the latest Valheim version. Uninstalling the game, doesn't uninstall the mods, because the mods aren't a part of the game. So you'll need to delete the Valheim installation folder manually, or delete the files inside them manually after uninstalling the game.