Ask HN: How to disable MS Teams Android auto-update

Hi friends, jsut wondering if there is a way (however hacky) to disable auto-updates for MS Teams. I own an Android phone that is not rooted. So far I already turned off auto-update in Google Store but it updated anyway. It also has a specific permission to write to storage that I can't even turn off (why bother show me then, Android?). I'd love NOT to use it on my phone, sadly can't do that.