My champ doesn't move/ engage for like 10 secs at the start of the match

No one cares apparently but it ruins the game for me bc i get this literally every match lmaoo

This isn't a bug. Garen has aggro of the krug that has no open spaces around him (taken by the other krug, darius, and pyke). If he can't get to his target to attack it, he will stand still and wait. This is the case with ALL melee champions in TFT and is working as intended.

What you're probably asking to happen is for garen to walk into the open space and hit the other krug instead, which would make sense - but the game is not coded that way.