Garen is bad design
His pasisve negates trades. His W gives him a free negatron and chain vest His silence is extremely oppressive and the combination of his Q and Grasp makes it very difficult to respond to his Q trade. The villain mechanic PUNISHES you for doing well and as long as he isn't abysmally behind he will kill you and get that shutdown gold to automatically bring him back into the game
I'm not saying he's OP his design is just unfun to play against, especially as a melee caster