The first four seasons of Yellowstone (and eventually all seasons) are streaming on Peacock.
The current season of Yellowstone can be streamed on Philo or watched the old-fashioned way, week-to-week on the Paramount Channel.
1883, 1923, Tulsa King, Mayor of Kingstown are premiering and streaming on Paramount+
Paramount+ and Peacock are plenty for me. Philo isn't worth $25/mo just to stay current with Yellowstone. The fifth season will be on Paramount+ a couple months after all its episodes have aired.
Sidenote: If you haven't tried it, PlutoTV is awesome. It's completely free and has channels dedicated to one show, like The Andy Griffith Show, Gunsmoke, Star Trek, Mystery Science Theater 3000, Rifftrax, dozens of others, movie channels too--24/7.
I even confused myself :)