MacBook Pro 14" with M1 Pro, Monterey 12.1 and Outlook 16.54, same problem here.
Already tried all the above workarounds, none worked.
It all started with 12.0.1 upgrade, as far as I remember.
It even affects Intel machines, got a MacBook Air 2020 upgraded to Monterey 12.1, of course the upgrade broke Outlook search (16.56) even on that one.
Luckily I got a 13" MacBook Pro M1 still on Big Sur that works perfectly, but I feel a bit angry for buying such a machine and not being able to getting things done.
I'm really starting to think about downgrading to Big Sur.
enricom
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