I guess he just read the update list and gave the answer, i clearly asked that 4g version will get the update or not, not his fault even he dont know anything, its samsung's fault, good job samsung .
https://www.reddit.com/r/GalaxyS23Ultra/comments/12ov3pc/massive_input_lag_in_games_how_can_i_fix_this/Read this and bro i would recommend you not to play bgmi or any shooter type game instead buy some cheap performance centric phone like poco x6 pro...
It's only in samsung who has these kind of problems, i myself face input lag its late **bleep** performance if they can not take the input fast what the im gonna do with all that power, im never buying samsung again even 25k phone can take faster inp...
You can use internet speed meter live i use it too, it's a shame for samsung it's doesn't have it yet( do they think like apple that our users are rich and don't care how much internet they use 藍)