You can change the default default branch on GitHub via <https://github.com/settings/repositories>.
I believe new GitHub accounts now have that set to main.
You can change it in settings. I recently started new repo and it was easy to set up to be master.
Repository default branch
You can change it: https://github.com/settings/repositories.
I fight against this useless political correctness with my own, albeit invisible, rebellion:
I've set repository default branch to `master` [1] on Github.
I've created init.templateDir with HEAD set to `master` [2]
That way, whenever I init a new repo, either locally or via Github, the default branch is master, not main.