Kbin is developed by mostly one person, so yes, it progresses quite slowly.
But there is also Mbin with many improvements and much more active development.

I’m fully with you, that an API is still missing and would love to see it implemented in the future.

May I suggest Kbin (or Mbin).
It is compatible to Lemmys posts and voting and has also Microblogging.

Personal example: Fedora (38 - 39). Resolve uses libs which depends on some older versions of a lib, which they don’t ship in the installer.
So I had to replace the depending libs so that Resolve can run with Fedoras more recent libs.

Maybe an Android Emulator can at least help with the tiny screen problem.
+ More isolation without the need of an extra phone.

Proton

I’m a bit confused.
Will this affect only the home feed or also the recommendations beside a playing video?

LGTM

I think the Fediverse logo or something like this would not hurt.

I saw your clarification that the comments persited on reddit.com. My thought was maybe the part of the DB which manages the comments of the posts was lacking behind.
But after weeks this should not be the case, so I take my comment back.

How long did you wait between the deletion and your Google search?
Maybe the Databases still have to reach consistency.

Firefox
Keepass2Android
Signal

You are unable to control the ability and will teleport even when you are just be reminded of a place.