Hot Take: Delete half the roster of champions if you want a healthy game.
Absolutely nothing but the same fraudulent overloaded kit champions in every game, being blatantly abused for free wins. "But they're innovative and unique." No, they're not. Oh look it's a hypermobile champion with hard cc, sustain, and basically whatever they need to dominate games with ease. I shouldn't lose points playing legit champions when I'm playing against fake champions with disgusting kits. Plain and simple. Game went to absolute complete doggy doodoo (excuse my language) because 99% of new/reworked champions are some freak frankenstein monster with broken mechanics. Sadly if you're not picking these disgusting abominations, you're just going to lose the game.
Maybe instead of trying to adapt the old League champions to suit the cancerous meta, you should just revert the game back to Season 3 and start all over again. This game is literally unplayable. You can do better. How did you go from the GOAT video game to the game screaming "Pull the plug. I don't want to die like a vegetable rotting away year after year"?