-Very toxic fanbase, regularly harassing developers online
-Work is often very repetitive, although that largely depends on the role
-Teams are disproportionately made up of "lifers" and people with no prior industry experience, leading to a frustrating echo chamber of ideas especially to anyone coming in with prior experience at a large studio
-Riot (especially League) is looked down upon by many AAA studios and if you're there for a long time it can be difficult to find new work in AAA.
-Feedback culture is excessive in some teams, leading to the most diluted and vanilla execution for many products
-Minimum quality bar in some disciplines significantly below industry standards
-Innovation is often met with a lot of resistance
-Borderline cult-like culture and self celebration, if you don't love the IP it can be exhausting
-Being social is basically a requirement, which can be exhausting for those who would rather just focus on the work
-Majority of time daily is spent in meetings or side tasks (writing documentation, random self improvement work etc)
-I would like to reiterate meetings. The number of meetings for a creative role is insane, easily up to 20 hours worth of meetings in a week or more even as a mid level.