Personally, I believe the whole push to switch from "master" to "main" is politically correct nonsense, and a waste of time. Obviously a "master" branch in repository has nothing to do with slavery or political perspectives, but DEI proponents have a compulsive desire to eradicate from society and language anything that has some vague connection to what they find displeasing.
If "main" is the default for new git repositories, I don't care and that is fine with me, but I see no need to rename leading branches on any existing projects. -- Christopher Howard