My last 3 characters have all been killed by z's at close quarters after clipping through the floor on official server 6742, Xbox series S. I'll provide details that i hope are relevant.
Death no.1 - turning a corner while looting tents at NWAF at a jog, i seemed to start moving up in the air slightly, one zombie was aggroed and approaching me, next thing i rapidly fall through the floor, my character enters a falling animation, meanwhile i am taking hits even though my character is several meters below the enemy. I exit to see if i can reload above ground on the same server, but when i do so i am a freshie on the coast. I was kitted out. I then tried exiting, waiting and returning, but it was no help.

death no.2 I was being chased by multiple Zs, and after several of them began hitting me i clipped through the floor, i exited the game, but when i rejoined the server it was a new character on the coast. I do not know exactly where this was. Then, I exited, waited 5 minutes, and rejoined and again that did not help so i don't think i was de-synced.

death no.3 i was attacking an already aggroed Z north of elektro with a sledgehammer heavy attack, clipped through the floor, exited, rejoined the same server as a freshie on the coast.

I have fallen through the floor numerous other times and have been able to exit and rejoin the server in the same spot as the same character, firmly on the ground and unharmed. Its when im fighting zombies that this bug becomes an issue.