I wouldn't be renewing my subscription once it expires. I mainly used YouTube Music from it but Google still hasn't managed feature parity with either Spotify or with it's previous incarnation Google Play Music either. I mean, they shoved the cast button that few people use replacing the next button used to skip to other track.
Play Music had a much cleaner interface on both desktop and mobile.
Yes, the feed can be janky for some though I liked the new video recommendations it sometimes gave. It reminded me of another gripe on their mobile app. When you go to the Subscriptions page, it shows polls, comments and videos all in a bunch instead of just the latter by default. This behaviour can be toggled off but seems to revert back every few days in my case.
Either way, subscriptions page should be for videos only, not other forms of data.