Why should I install a browser as admin/user-only?

Privacy Questions
1

I just recently learned about the principle of least privilege, and I’ve been trying to replace as many programs on my PC as reasonable by either their portable counterparts or by reinstalling in userspace instead of admin.
But then I started to question whether I should do the same with the browser I use to sign into my accounts, since on one hand, the browser does NOT need to be installed as admin to function properly, but on the other hand, I wonder if there’s actually some benefit to installing it as such, like better data protection or something like that.

What do you think are the advantages of installing a browser as standard user instead of admin and viceversa?

Update for clarity: I’m asking specifically about Windows in this case, but I’d imagine the question is still relevant for other OSes

2

Are you referring to a particular operating system or asking generally?

3

I’m asking specifically for Windows in this case, but I’d think is also relevant for macOS and Linux

4

No there wouldn’t be any benefit.

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5

I think at least most desktop OSes allow you to install apps as admin so that it can installed to system folders (on Windows that would (usually) be Program Files folder, on macOS it’s /Applications, and on Linux it’s /usr/bin) and be available to multiple users.

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