Linux has now hit 3% according to sat counter. It isn’t has obscure as it was in the past and I think it is a lot less of a privacy risk.
I also know a significant number of Linux users who use librewolf. This means that the user share might be a bit higher
I’ve wondered about that as well. Especially since websites seem to know which operating system one is running anyway. Sadly I can’t say I know enough about this to have an informed opinion.