In Power BI Desktop App, when trying to authenticate to Salesforce to retrieve Objects or Reports our end users receive this error: "We don't support this browser. Try opening this page in a supp...
We use the same version: 2.74.5619.862 64-bit (October 2019)
When you are logging into Salesforce, make sure you are not logging with an SF admin account or an account that has Customize Application permission enabled on the profile or permission set. For these accounts IE11 is allowed by default by Salesforce.
Thanks,
Marijus Gorinas