What I've noticed: The ADC changes completely gutted ADCs
I lose to APCs every single time. Crit ADCs will get perma poked + cc'd by two mages bot lane, and you can't do a thing about it. I hate how Riot made ADCs so weak without any warning. Maybe if they did it gradually to give us time to get used to the idea, I wouldn't be so annoyed. Instead, in one update, an entire class fell out of meta. Now, it's very common to see bruisers or APC bot. Yes, ADCs used to be OP and very overwhelming. Yes, they deserved a nerf. But this is just overboard. This is an overkill. Maybe I'm just silver, and my opinion doesn't matter, but sites such as champion.gg have all been indicating a large increase in APCs. Now, if we take into account the mage mana changes, all Riot has done is essentially shift mages out of mid and into ADC, and forcing ADCs who aren't Lucian into retirement.
Riot needs to stop hitting us with so many extreme changes in such a small time span. It feels like League is starting to become an unfamiliar, new game. Change is not always good, and it feels like Riot is desperately trying to cover up or make up for something with the new changes to the game, ever since they changed the runes. Not all the changes are bad, but within five or take two months, both junglers and ADCs have needed to relearn, or at least get used to huge changes to their roles.