Thanks for your sharing, glad to see it is resolved. However, due to a recent update in forum policy, the question author now is not able to accept their own answers.
So, I have written a brief summary of the solution this issue. Please feel free to accept it as the answer, which would benefit others who also has similar issues in forum.
Issue:
Teams crashes on startup. The banner prompts an error message: There was a glitch, and we had to restart the app. It's good to go now.
Solution:
This problem was solved by starting the Teams client with Windows 7 compatibility.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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