The first three menu items in the navbar of the authenticated YouTube homepage are 'Home', 'Shorts', and 'Subscriptions'. 'Subscriptions' shows exactly what's on the tin, a timeline of videos from your subscribed channels.
A lot of people might not realize this exists because of the way apps for smart tv's and game systems present the content and menus. I'm not sure if that's intentional or just misguided design, but the only reason I knew to see it out on my PS4's YouTube app is because I'd seen it on desktop.
Because it's a heck of a lot better than what some people such as the grandparent are doing, which is ignoring the existence of the Subscriptions view entirely and relying on the home screen to be useful.
Using the Subscriptions view is as simple as changing your bookmark. Setting up RSS is a lot more complicated for someone who isn't already using one.
If you're already on RSS, no one is suggesting you use Subscriptions instead.
