I was unsuccessful in setting up a new Gmail integration using the Windows desktop app. I tried via the Settings>Integrations page and through the “+” button of a Space. For both, once I got to the below pop-up, I was not able to click on the “Connect” button. I was able to connect without issue through a web browser.
Also, removing a Gmail integration did not work in the desktop app. The below pop-up was not interactable: