It was more due to the way a lot of the games I liked to play started to make changes to gameplay to try and push players to spend more money. Unnecessarily long grinds with subscription based paid shortcuts, freemium/premium BS, game modes that started to require you to be online for a certain amount of time each week to progress.

Gaming was always more of a social thing for me, and once it started to feel like an unpaid, part time job for me and my friends it stopped being fun.

EDIT: I may be projecting dark patterns onto something that's just driven by market forces these days, but I kind of doubt it.