Do you find open source games interesting/good thing as a gamer?

@games I am a game developer working on game called Mushy Score. I decided that my niche would be to create open source games. I think these could be helpful for developers or teachers to teach about games and how they are made. Most open source games are small game jam games, but there are few “real games” that are open source like 0 A.D. and Doom. As a non-developer do you think open source games could be good thing?