TEAMS on MAC launching fullscreen

Same here for many weeks

Same issue here for me as well. Super annoying. It's the only app that's acting up this way. 2019 MBP 16" with Big Sur. Happens on internal screen as well as external 27" 4k via USB-C.

Interestingly there have been a few releases with seemingly unimportant UI changes since this was reported, and yet this major bug has still not been fixed. Wonder if the Teams devs use Slack instead??

I'm also on a intel MacBook.

I have updated Teams to the version 1.4.00.573 on the 13/01/2021 and it seems to have disapeared.

Let's see . . . 

About an hour ago I downloaded Teams_osx.pkg from https://www.microsoft.com/en-ca/microsoft-teams/download-app.

It is Version 1.4.00.4971 with md5sum:

66a54ffb68ad394a6e2a06d3f33172d3 Teams_osx.pkg

And it has the same issue of zooming to full size after restoring.

This version is not available for me.
I tried to download using this link https://www.microsoft.com/en-ca/microsoft-teams/download-app and the available version was 1.3.00.33671.
Maybe because I'm from Brazil and this is the the most updated version available here, even if I change the language to English.

Best,

In general Microsoft teams (not capital Teams) act upon self- / business interest and upvote count from UserVoice items. I guess this issue still hasn't surfaced enough. The way I see it: it shows they don't really love their product.