How can I log in to my working Google internet account with Apple Mail on my Mac?

I want Apple Mail to talk to a gmail account. In System Preferences, when I say I want a new Google account, I get a dialog that says > Google requires completing authentication in your web browser So I click the button and immediately I see another dialog > Failed to authenticate with Google, please try again later There is no evident communication with the browser, so I can't authenticate. I've also tried creating a normal manual mail account, but no better luck. I have turned on Less Secure App Access for the account I want to use. I have no difficult logging into this account using the web (gmail.com), but I don't want to handle my mail that way; I need it to be part of my mail. This has worked fine on other machines. This one is Catalina 10.15.7.