Bug since snapshot 21w10a

Hello,

I've some issues with visual bugs on minecraft, started to the snapshot 21w10a, and all the versions after, including 1.17. I have some screen of my menu and ingame : all the textures are mess together. I've installed the game multiples times and it never worked. I deleted all my ressources packs and the same visuals bugs persists. 

How can i try the new version and not stuck in 16.5 if i have thoses issues when i try new versions ?

Thanks.