You're missing nothing, it's a non-issue. You can use master or main and neither git nor GitHub care, employers might have some guidelines but they generally ha

You're missing nothing, it's a non-issue. You can use master or main and neither git nor GitHub care, employers might have some guidelines but they generally have a bunch of things like coding conventions, codes of conduct or other office policies designed to make workplaces somewhere you can actually work without, for example, worrying about colleagues saying or doing hateful, racist or sexist shit