I don't have enough reputation to comment yet.
I want to add more on @BSSchwarzkopf response.

for VS2022, if you want to compare vice-versa (in opposite direction) you can't do that.
it will always compare older_branch vs newer_branch .
older_branch = branch that last commit date is earlier.
newer_branch = branch that last commit date is latest.
no matter what branch you checkout.