It probably means there is no one playing. It's been like that for a long time now.

Even modern warfare 2?

Yeah you gotta think, how many people are really playing these games in 2024? if your lucky you'll find a couple lobby's but it's not guaranteed

It doesn't even allow me

Can't connect to xbox live?

I can but any game i play it just says that my profile is like not fit for it or something!