At least big gaming sites are pretty straight up with their sponsorships.
It's probably a good thing that reddit seems to have been too incompetent to enshittify their site completely yet. There's lots of it that has been, but there's still plenty of very good discussion there if you know where to look.
That said I suppose if good moderators filter the rabble out there's bound to be some good communities. I just find that if you love a game it's usually best to steer well clear of the subreddit for it.
This is key and one of the reasons that ignoring r/gaming and subbing to r/games instead has been standard wisdom since like 2010 when reddit actually had a guide to which frontpage subs to unsub from (r/pics, r/funny, etc.) and which ones to replace them with.