That really is some neat shit. And skillfully done too. That's beautiful work!
I'm not sure if this is related, but back when Twitter did it's thing and I started an account at Mastodon, I did the same on my Android, and had wacky results after using it a few times. I ended up going the browser route instead as well. With Lemmy, though, I found Jerboa early on. It's worked well enough for me to drop a couple hard earned dollars to support that project.
Looks like it could be the sky from the 80s "Flash Gordon".