Not sure there’s really much point in trying to push people to use Linux if they aren’t interested in computers.
Imagine if someone came up to you raving about switching to a new car brand that has a 5% higher top speed and 10% more fuel efficiency for your money but the handbrake is in on the roof, you change gears with buttons instead of a gear stick and you fill the tires with water instead of air
Most people don’t care about what software runs on their computer and just want the default because it works the same way everyone else’s does
Only way Linux gets into the mainstream is if consumer hardware with it preinstalled gets popular, the steam deck is a good start