User reports they are unable to connect to a hosted dataset via Power BI desktop. The error is 'We're unable to connect. Please delete your credentials and try again later.'
It seems this is a known issue since the last Power BI update from Microsoft and they're working on a fix due to be released end of June 2022. Details can be found here
In the meantime, the workaround they suggested is:
File > Options and settings > Options > Global > Security > (scroll down) Authentication Browser > Check the box "Use my default web browser"