Gonna close this and it’s more complex that seemed at the beginning.
Probably it’s the interaction with the 3 overlapping Teams packages that caused this and not the update itself, althought in the time of events it happened it made me think it was that. More info in “Could not load file or assembly” “the system cannot find the file specified” when debugging - Feedback / Studio - UiPath Community Forum. The case is in the hands of Customer Service.