seaken64
There are differences in browsers. But mostly it’s up to us as users to properly setup our systems. You can learn to setup Firefox and use different search engines, etc. In Linux you will find that it is not always easy to just install a new piece of software that you found in a search. You will need to learn how to compile the software yourself or you will rely on the developers to “package” the software to work with your particular system.
If you are really determined you can learn how to be as secure as you want. But most of the work will be done by you, the user.
Seaken64