Currently getting familiar with PieFed as my new main platform after using Lemmy for more than 2 years.
I was missing the New Comments filter from Lemmy that shows you posts that had recent comments.
After some digging on Codeberg, I found this issue and found out that the Active sort on PieFed shows you posts with recent comments.
tl;dr New Comments on Lemmy is Active on PieFed
Yes there’s no clear answer