I consistently hear people on YouTube complain that the subscribe button doesn’t do anything for viewers, now that channel notifications are controlled by the bell. But it does do something: it puts the videos from that channel in your subscription feed, which is readily accessible on all versions of YouTube. So why do people act like it doesn’t exist? I think it’s super convenient, especially if you’re subscribed to a ton of channels and don’t want your notifications feed flooded with new videos.
I just use subscriptions as a super-like: please keep putting this channel’s videos in my feed.
I’m generally not interested in seeing all the updates for every channel I like in one place, especially not per-artist. I just want a mix of stuff I’ll probably like in with stuff I might like, so I stand a good chance of finding something cool.