Same here although I can't even get .53. Best I can do is .52 even on the Beta Channel. This is odd since all the other Microsoft products now say 16.53 except Outlook. Microsoft may have pulled .53. I am getting around it with Parallels running Outlook on a Windows vm. I expect with all the noise on this Apple will do something fairly soon.

There is a new update to outlook. 16.53 is back out there. That said it still crashes but now we get a report page and not just an immediate crash.

Just got a suite of updates from Microsoft. Outlook still crashes. Updates to all 6 products. No good news yet.

There is a new build of 16.53 the previous one was 21082406. I received 21082901 this morning. Also Beta 6 is now out there.

When I upgraded MacOS it did not load beta 6 it loaded some prior version. It's now doing a second upgrade to Beta 6. Details after that finishes.

I reported this a week ago on Feedback Assistant and no reply!!!!!

We found another problem. If I plug in my second monitor after booting. Now the printer doesn't work. Unplug the second monitor and all good. I have filed feedback for this but still no response.