I don't like being invited to games I don't know, but my friends don't have the time or the energy to go through my list of every game I've played to know what I've played, so an idea that could help prevent being invited to games you don't know or don't want to know, would be a little icon in the invite menu when you're looking at who to invite with just a little like check mark next to someone's name if they've played the game before at all, I made an incredibly simple mock up as well because I have too much free time
