I have a gaming pal thats not super techy, and kind of lazy, so they’re still on 10.
I really doubt he will ever change to Linux (he complains if we have to play any game not in the steam library, he is not a tinkerer) but I wonder how much I need to remind him to change to either win 10 iot or maybe try Linux? Is it even a concern?


You can’t convince people to change, that’s not how things work. They must already be willing to. Even if it’s only to change the OS they’re used to.
I’m not a gamer, so bear with me, but can’t you show him his favorites games work on your computer?