It looks like player model gets swirled.
Always occurs when PaperDoll is installed and very rarely when not.

This is happening to me and my friend on our custom modpack on 1.20.1, i have tried installing the other many versions on curseforge to no fix. theres a config in the pause menu with nothing about 'use' animation tweaking and im sure its a error just for 1.20.1. if your not on 1.20.1 please say so

You also think this is a paperdoll issue, me and my friend also has that installed ill try that thank you for this post