The major non-Nintendo consoles have de-emphasized splitscreen and party games for a long time -- once we hit the PS4 and Xbox One era, it felt like most games didn't even support splitscreen at all, aside from a few indies. I think those games tend to rely on in-person interaction to boost the fun, and MS/Sony have decided to prioritize selling additional consoles instead of making one usable for multiple people.

The halo universe is pretty big. There are about 20-30+ books that I can recall, a phone game, and 2 RTS games on top of the FPS games we know and love. There is a TV show releasing this or next year. The universe of Halo is one I've grown up with and can't stop waiting for the next piece of lore to come out. There's a lot to enjoy in the Halo universe even if you don't play FPSes. The books themselves are solid though a solid % is just your run-of-the-mill fiction.

Nintendo and mobile are the only real options for party games. Xbox and Playstation are for AAA enthusiast games.

I don't think the parent was saying they were the same.

Just that Halo was the closest IP in terms of prestige.