Thanks for the visual example. I was also looking for this functionality and was about to ask, but I just figured it out. For anyone confused, you hold down on the top part of a comment next to the commenter’s name and it should collapse that chain. Personally I would prefer just tapping on the colored lines on the left side, at least that’s what I’m used to.
+1 for alternativeto. Searching for alternatives to popular apps using the filters like “Open Source” as well as operating system, privacy, etc… is a game changer. There’s also comment sections where people sometimes elaborate on certain things like differences between the app you’re comparing to.