Sorry to make this into a new comment. I’m apparently Lemmy dumb and can’t figure out how to reply in a thread yet.
The link you shared is the correct one I was referring to, but some of the issues have referred to what I was commenting about previously, and they’ve shared a forked version which implements a change to only edit in 5-second intervals which goes around new reddit rules.
In the short time since my last comment I’ve learned it’s a right-left swipe on the comment box in the Memmy app. But thank you either way!!
I hope it helps :)