Wait, what is the age assurance thing? I thought just logging in was enough to make all age gates disappear, I didn't realize there was anything special about my account (other than it being tied to my personal email instead of a Gmail address).
Yeaaaah, they may be the biggest consumers, but they're not users and they're not terribly useful to users. I'm not changing everything around to make some LLM spit out more easily believed misinformation.
I wouldn't mind using other services if any of them were competent. Steam gives me one-click Linux support for Windows titles, massive control reconfiguration capabilities, and a full suite of the normal expected features: achievements, cloud saves, forums, etc. Name me any competitor who even comes close. They dominate because they put in the work. Everyone else wants their slice of the pie but won't bother to develop features worth using.
https://xkcd.com/1205/