Quickplay is actually kinda riduclous
I play it a lot, and it's not an exageration when I say the game ends by way of one's nexus being destroyed in approximately 10% of games. The other 90% are 3-2 ffed at 20 minutes.
I don't know if this is a hot take but this should NOT be a thing. 3-2 ff should never exist. Playing any kind of lategame champ in that mode is downright impossible.
Quickplay completely lacking a champ select already makes it quite a bit faster than a regular game. Having every game ffed at 20 minutes is artifically decreasing the game length in an unfun and uninteractive way. Overwatch quickplay simply has less objectives and less rounds, so games are naturally faster without feeling like you couldn't do anything because 3 of your teammates decided they don't wanna play anymore. League quickplay could have one less tower in each lane, or faster and squishier objectives, but instead it's made "quick" by virtue of EVERY game being ffed at 15-20 minutes, and these games aren't quick in a fun way at all.
PS. I only realised just how many games are ffed when I checked my league of graphs and it labeled me as someone who surrenders frequently. I never ff (unless the game is absolutely unplayable) and vote no on virtually every surrender, but games are surrendered without my input so often that it still labels me this way, I personally don't think it's fun or healthy.