You can install Arch/Debian Linux or Ubuntu, and there is no collision there. You build your OS the way you want it or you run an automated installation and soon you are doing work, browsing, watching movies, etc.
My point is that if Debian wasn't what it is, you wouldn't have Ubuntu which offers additional value to a typical user, and be stuck with Windows forever. Choice is of value.
Do you want to be stuck with Firefox, Chrome etc. knowing how hard they adapt to real needs and ignore bug fixing in favor of new features?
A browser is not your 'typical' application. Browsers are in my opinion true virtual machines and should be treated as such.