Runtime and google drive disconnection

[vanessa-pc]

Describe the current behavior
As a colab pro + user, I have been experiencing severe recurring issues with the service.
Firstly, it disconnects my runtime during model training.
It does not run in the background.
It keeps throwing FileNotFoundError: [Errno 2] No such file or directory: for google drive files at random, when the files exist.

Describe the expected behavior
Runtime should not disconnect almost immediately.
Background execution should occur without disconnecting/disruption.
Model training should not crash as files are in google drive.

What web browser you are using
Brave

Additional context
Overall, this is an extremely disappointing experience as the colab service is completely unreliable and a lot of credits are being wasted due to consistent crashes during model training. This is further compounded by the fact that I have paid for the highest subscription tier. Please let me know if there is any way to fix this. Thanks.

[cperry-goog]

Duping with #3785 if you have a minimal reproducible notebook that would be helpful.