same here, it tries to send email to some *****@.local !!!
it should use the oauth, but it seems like tries to connect to github oauth like email address
for this forum same auth worked well
if i revoke access for this app - nothing changes, but it should really in case of somnething went wrong
it s possible that for the first time i’ve pressed “sign in” without registering account before and then it takes the wrong email check
When it finally did work again, I went to https://gitlab.com/-/profile/account and connected my GitLab account to my GitHub account. I’ve been using “sign in via GitHub” since then and, so far, no problems anymore.