Additional features, settings, or issues not covered by specific Microsoft Teams categories
I have had a similar experience. However My issue was that I have laptop connected to a domain. I then created a local user our with the domain. Installed office 365. All was working well except Teams. Spent a while deleting Teams and associated files and folders and then reinstalled. Same issue Teams hangs. I then decided to take the laptop into the office and login as the user. Once I did this everything worked as it should.
Not sure if it was the fresh profile that sorted the issue? Or was the issue caused because I used a local profile for a works account on a domain attached laptop?
Just my pennies worth. Hope it helps.