User role not showing as field in formulas

I’d like to filter for it in formula but I can’t seem to find it.

Hi!
Could you please share the use case? What are you trying to achieve?

Notify all users related related to a project who are not guests. Or any time theres a relation with many users, and I want to do something for those who are members but not those who are guests. Same thing could be said for admins.

If theres a team and each team has an admin, I want to notify the admin in the team, for instance.