Not sure the answer you may be looking for but yes I do have it on.

Even though I checked what it does and turned it off and on, I don’t really see a difference?

I just leave it on as I don’t think it can hurt having it on

Bottom where everything else should be as well for any other apps since it’s much easier to use, since like everyone has said phones are getting huge these days.

If you use Voyager (which is legit a Apollo clone) it has the removal of gestures.

Sync is now out in beta in case you didn’t know. Launched today.

No one really knows but I’d imagine the bigger ones the you see now like world ml kbin and others would stick around.