Good point 👌 some jobs are 100% remote, but others non remote or it is not really sure without reading a description. So it can be remote, non-remote or isn't specified. Maybe - "Not 100% Remote" or "On-site / Hybrid"?
Discussion
To me "non-remote" means "we only do onsite work". If that's the case, what is unknown? It seems to be all known, under that circumstance.
Aside from remote, on-site, and hybrid, there is also sometimes "travel", which is remote, but not at home.