I’m asking new joiners because I know it can be confusing at first to see issues with content discoverability, instances unavailability, people migrating accounts, etc.
There is a “comments” feed on the website that shows only comments rather than posts. It’s useful for my alt that is only subscribed to a few niche communities, you see what’s happening at a glance rather than opening each post
This is one of those features that gets overlooked but is a great feature. You should definitely file a feature request on GitHub for it.
I’m not that much of a Sync user myself (personal preferences, I guess), but I imagine at some point someone else will request it too