Em Client (www.emclient.com) has supported Exchange for a while I think

As a linux user, it's more like either die by the web version or migrate the company to another mail solution. And yes, I know evolution does ews as well, but i got tired of sync issues and having to switch from deb to flatpack because of it and other annoyances over the years.

I mostly gave up on email anyway and switched to a better solution - teams (at least until July after which the deb package of v1 should stop working and v2 doesn't work for me in firefox - can't unmute myself in calls) /s