403 in push with PAT

I’m sure I’m doing something stupid. I’m trying to push to a public repo. MacOs, Big Sur, updated git. Get a 403. Used a PAT with repo enabled. Just created the PAT. Tried installing credential manager. Same problem.

remote: Permission to xxx/yyy.git denied to myUserName.
fatal: unable to access ‘https://github.com/xxx/yyy.git/’: The requested URL returned error: 403

I am having exactly the same issue but no idea how to move it.