You can’t get rid of it, you can only hide it: Microsoft imposes controversial Windows Backup on users::Like it or not, the Windows Backup app installed in Windows 10 and Windows 11 is here to stay, with Microsoft calling it a "system component" that can't be
It's optional as most things in Windows. Also if you do not use MS account where would backup be stored, how would you restore it? :)
Here are more reputable sources:
Have not used it myself, but I think most if not all of this was already available through Settings so it's nothing new. LazyAdmin article seems to state the same.
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“Reputable.”
You mean sponsored.
No, meant reputable, because 1st one is MS article and those 2 others are blogs that I have read in the past and have not had much issues with their content (also I skimmed through them)