You wouldn’t NEED one. But why would you want to browse different libraries of games manually and install “by hand” if there’s some simple launcher? Like steam, gog galaxy or playnite for win. Doesn’t mean you couldn’t. I also install a lot of cracked games to playtest. With mods and cheatengine and whatnot. Don’t even notice it’s not windows.

BTW: On your phone you don’t even have a choice anymore other than ONE “launcher”. So…choice is good 😊