How I see, the mainstream consider it, if you are owned by a
poker site, I mean you are an official face of them.
However, most of the pros are unknown.
Anyway if it is simple if you are able to reach a steady income, live off by poker with less than 40 hours play/week, probably you are something like that.
Personally, never could consider myself as pro, in any meaning, as even i know where i am profitable, the
bankroll management, tilt handling, when is the time to leave the game for a while, at least for the given day, is still not working, even if it would, the pro means something more for me. Anyway, without the live CG or tourney profitable part, hard to name anybody as pro.
The real pros who I consider as pros, rarely play online - at least before covid -, most of them high stakes world traveller CG, high stakes live tourney players, whose play much rarely than an average player. Oh and most of them, the poker is not the main activity.