I grew up with Looney Tunes and Disney Channel prime, which was late 80s-1998.
I couldn’t wait to watch the vintage Disney shorts on Disney Plus. (That’s how you find the good stuff on Disney Plus)
The old schools Looney Tunes used to be on Max, and I’d put that on as background noise when I took a midday nap, but it’s not there anymore. They had decades of Looney Tunes which played for hours.

So I’m going with old school DISNEY cartoons, because they are still available, but won’t play continuously.
They still have Tom And Jerry, but I don’t remember those the same as the Looney Toons. I’d take 90s Tiny Toons, and Animaniacs too.
Edit: I’m 40 years old, born in 1984, graduated 8th grade 1998, high school 2002, for reference