The average Linux distro doesn’t need to use command line for anything. Literally just click on Firefox or google chrome and you’re done lol.
As for gamers, if you take 5 hours to mod games but cant learn to use CLI for 5 minutes then idk what to tell you chief. Though right now it won’t be mainstream because devs don’t want to update their anti cheats for Linux, not because of compatibility
The whole “waste time, value freedom” super duper complexity shit is just propaganda regurgitated by people who heard about Linux through a game of telephone, Hollywood, and YouTube videos. That’s not to say the Linux community is very good at marketing or giving troubleshooting suggestions for tech illiterate people