It would be expected they stick in the player where they actually make contact, like they do with most other elements in the world. Can be easily reproduced with the provided setup.
MC-193922
Arrows stuck in a player appear in random places regardless of where they actually hit
Resolved
Works As Intended
5
(Unassigned)
Community Consensus
Player, Projectiles
embedded-sharp-objects
20w27a, 20w28a, 20w29a, 20w30a, 1.16.2 Pre-release 1, ..., 21w08b, 21w15a, 21w20a, 1.17 Pre-release 1, 1.17
Retrieved
Hi there!
I can confirm for release 1.16.2.