Typing this 11 days after the initial question was asked and things have changed a lot since.

I've tried two apps: voyager (used to be called wefwef) and memmy.

Voyager has one problem for me on iOS 15.7: When I tap and hold an image no menu shows up, and I have no way of directly sharing an image. I can only share the link, but I don't want to do that. So if i want to share memes directly with friends and family I can't do that. I've tried to explain the problem in github but it seems like it's not a high priority and difficult for them to reproduce. I wonder if this is rooted on voyager being a web app.

Memmy on the other hand has made great progress and for me is the winner because it allows to share the images directly like I used to in apollo. They've now fixed the swipe to close gesture being too harsh, and thus I have what I need.

Here's what happens on voyager when I tap and hold an image I want to share: https://files.catbox.moe/ypz37b.mp4