We deployed Teams2 on Win2019. Almost immediately users started seeing the update button in the Title Bar. HKLM\Software\Microsoft\Teams\disableAutoUpdate is set to 1. Am I missing something? At some point during the day, Teams closes and I have to reopen it. I assume this is when someone pushes the update button on the same VDA.

Is it possible you deployed an older version? To prevent new Teams from autoupdating, use the following registry key on the virtual machine. Only new Teams builds higher than 23306.3314.2555.9628 in VDI can process this registry key.

I believe we have 24193 installed on the gold image. It was downloaded from MS on 8/06.

Known issue. It still tells people there is an update, but doesn't let them update it. Teams is FREQUENTLY updated.