I've seen a few, but they were mostly contained to more random offshoot instances, and those stirring up bullshit were booted pretty quick.
I think the inherent instance ownership gives admins a greater sense of pride to keep their localities positive, and a lot off us are still feeling from what reddit became in the last 5ish years and there's a communal sense of keeping that outta here.
And yes, at least for now. Hopefully those marketing ploys are readily apparent and get kicked to the curb quickly.