Greg Zejer
Turn Off ‘How was the call quality?’ in Teams or Skype for Business Online
Turn Off ‘How was the call quality?’ in Skype for Business Online
Skype for Business Online users that use Enterprise voice will receive a pop up every once in a while asking to rate your call experience:

In order to circumvent that, you can connect to your tenant in Powershell and disable it with the RateMyCallDisplayPercentage option.
Set-CsClientPolicy Global -RateMyCallAllowCustomUserFeedback $False -RateMyCallDisplayPercentage 0
Wait a little bit for O365 to replicate and the next time you sign out and sign back in again, the message will no longer display.