Firstly, sorry if this is not the adequate place for my question; if it's the case, let me know.
The title may seem confusing, so let me detail it: I'm more of a commenter person, and some of my comments are replied, and Lemmy notifies me of those direct replies. However, there are moments when those replies receive third-party replies, so my comment turns into some kind of "sub-thread", something that's interesting for me to read and follow. For those third-party replies, I don't receive notifications, so I have to access each direct reply that was notified so to find possible "sub-threads".
There seems to me to be no option to "receive notifications for this post/comment/reply", only the automatic opt-in of notifications for direct replies.
So really isn't there such an option? Or is this an instance-specific feature and the instance I belong to (thelemmy.club) don't have it?
Left a comment to another user in this feed. Do you use RSS feeds at all? If so, you can use that to get notifications. But if you don't use RSS feeds for sites, probably not worth it.
I replaced the part of the link you gave and indeed it potentially notifies about every reply on the thread, except that it doesn't work with specific comments (for example, https://thelemmy.club/post/16151677/13197569), only with the entire post. I'm not used to use RSS Readers, but it's worth to know it's a possibility for being notified, even if it works only for the entire thread. Thanks!