The player head snaps to its correct position after coming out of crawling. While the animation should, like in previous versions, slowly interpolate to the correct position. Could be because if MC-275252 being fixed in the latest version.
MC-275751
Head snaps when coming out of crawling
Resolved
Fixed
1
Seems closely related to MC-265399 but I'm not exactly sure if this is the same problem since the issue you're describing didn't occur in 1.21.1. I'll mark as related for now.