RuneScape, at least in recent years. Always hated the complaints the game has gotten over the years but in the past year or so, Jagex has been going off the deep end. I still love the game, but hate what Jagex is doing.
Another is Fallout 76. I defended that game from the start, and still do, but Bethesda is squandering its potential by not funding it and creating loads of new content as they should be. Moreover, their monetization of the game is crap these days. When the game launched, I genuinely WANTED to throw my money at Bethesda because I felt like I was valued as a customer. I bought the game one time and just by playing the game, I could earn the virtual currency for the cash shop; I never felt like I had to grind or do stuff I didn't want to do. I also had the option to pay a subscription to get some cool (but largely unnecessary) bonuses. As such, the game felt truly freeform and sandbox, closer to the single player iterations than Elder Scrolls Online is to its respective franchise... but then they went and added a crap battle pass, mostly removing the ability to earn the currency and instead filling the challenges with cosmetic and utility items that I may or may not want. What's more, is that this battle pass (like ALL battle passes; worst monetization model of all time) pressures players to grind and play the game in specific ways, rather than encouraging the player to do what THEY want to do.
Another game might be EverQuest 2. A fantastic game at heart, but ever since SOE became Daybreak, that game (and all games they run) really became husks with next to no potential. When they canceled EverQuest Next, I lost all respect for them and it coincided with me getting burned out on EQ2. I tried getting back into it several times but just can't, which sucks because I still have close to 2k of their virtual currency on my account... I may either buy a player house in EQ2 or just use it all on Planetside 2 as that's probably the Daybreak game with the highest chance of a future.
Oh, and let's not forget Star Wars: The Old Republic. I began playing it in 2014 and was never outright addicted to it, but I've had times where I play it a LOT only to follow it by times where I don't even touch it. Between being burned out on its overt focus on combat (combat that is rather boring for Star Wars) and the fact that so much content is locked behind a subscription, it really does make it difficult to not complain sometimes. I really enjoy its story, the exploration, even its graphics but a poor business model and boring combat makes it hard to truly jump into the way I'd love to.
Just to throw a single player game into the mix, maybe Star Wars: Rebel Assault II? LOVED the game as a kid, it's still fun to me in a nostalgia sense as it inspired so much of my childhood love for Star Wars... but man, as an adult, I see what a mess it was. Terrible FMV acting, on-rails shooting that has no variety or replay value, and the fact that it doesn't run spectacularly on modern PCs. It's a guilty nostalgic pleasure for me these days.