Using older versions of Outlook for Mac in business environments
I've had the same problem with my MacBook Pro M1, Sonoma 14.1. It has also happened to my wife's MacBook Air M2 at a similar time. I tried various 'fixes' including recommendations from Microsoft's knowledge base, but they didn't immediately fix the issue. Ultimately the issue went away (for now), but I can't identify a specific remedy. So I think it's a really difficult issue to replicate and remediate. Sorry I can't be more helpful.