you have said the solution to this on few post is to set "Name Render Range" to 0 but you can not set "Name Render Range" to 0 only 4 and even changing it in the config file and restarting the game just sets it to 4 again. before and after staring the game.

so i have no way of getting rid of it

is this a bug or am i doing something wrong

i am using Chest Tracker 2.6.7+1.21.4 fabric

That other issue is for the pre-rewrite version; you can disable it in-game under compatibility.