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 haven’t checked it out in a while but the problem I had with the subscriptions feed was that a lot of videos don’t show up there. Sometimes it would take weeks for a new upload to actually show up in the feed, while some channels just never appeared there. IIRC, YouTube stated that this was at least partially intentional.
I checked some channels and I didn’t see any videos that were missing but I don’t really have the patients to check every channel I’m subbed to. Although, I’m subbed to over 150 channels on YouTube but the feed didn’t seem to have a lot of videos posted in the past week.
Regardless of whether they fixed it or not, assuming YouTube still offers them, the RSS feeds were always reliable for me.