Как да се върнете на началната клонка в git

git switch <branch_name>

git checkout <branch_name> 

[git checkout "branch_name"]

is another way to say:

[git checkout -b branch_name origin/branch_name]

in case "branch_name" exists only remotely.

[git checkout -b branch_name origin/branch_name] is useful in case you have multiple remotes.

Regarding [git checkout origin 'another_branch'] I'm not sure this is possible, AFAK you can do this using "fetch" command -- [git fetch origin 'another_branch']

git checkout 'another_branch'

git checkout -b branch-name

git checkout master        # to be sure you are on master branch
git push origin HEAD:main  # and then push the current branch (as master) to main
-or-
git push --force origin HEAD:main