The bug
Camels can suffocate a player depending on the camel's rotation when near a block there is four blocks high. See
[media]
and
[media]
.
How to reproduce
Either build the structure in
[media]
and summon a camel or open
[media]
Do a full rotation on the camel
→ ❌ During some angles, the camel will cause the player to suffocate
I'm quite sure this isn't the same bug. I can suffocate when walking along flat wall and when not even moving (i.e. in the case of the attached clip). It doesn't have to do with the camel being able to walk under things when you are riding it, it has to do with the rotation of the camel sometimes suffocating the player in nearby blocks. This shouldn't happen because the player's hitbox shouldn't be outside of the column above the camel's.
At worst it's a grey area as to whether this is the same bug or not, and as such it should probably be left up to Mojang to decide whether it is intentional or not.