Yes. I've never played one, but from what I can tell it's like a forum where you go on with an identity and form clubs with people and chat about stuff, then you play some wonky subgame for 1 minute in that 3 hour session, then you go press a bunch of buttons to gamble for virtual prizes, etc.
I've played lots of MMOs when I was younger and it's always the same: the "game" doesnt really start until you hit the "endgame" (usually near max level with decent gear).
Until that point, you are often grinding and doing daily events, like a job.
And we often joke that once we get there: "Finally, I get to play the game".
Then there's fear of missing out with seasonal or other limited-time awards etc. which " forces" you to play when you don't want to.
Jonathan Blow has written about why this isn't fun game design.
And those are some reasons why despite having played a lot of these, I agree with the pithy comment that they aren't games.
Some hints: https://en.m.wikipedia.org/wiki/Massively_multiplayer_online...
But thanks for the downvote, you really got me there.