So /tick is now available in vanilla. Well, most of it is. Obviously only one could exist at a time, meaning /tick from carpet is gone, so here is the gist... mhm... of what happened, what is covered, what is lost and what might not be lost forever. This is not a writeup from a Mojang developer, it's a writeup from a mod developer whose part of the mod just got obsolete by a gaming studio.
/tick on its own, as a query command, is moved to vanilla /tick query providing much more information about the health of the game tick. Tick performance and tick targets are also now way better handled in F3 and especially F3+2 screens, but if you are not in singleplayer or run the server with your game, a better information directly from the server through /tick query may come in handy.
/tick rate now exists as a vanilla command. It is limited on the lower end to 1 tps (not 0.1 tps like in carpet) to get a more responsive chat (the only reason so far tbh), but due to improvements to h