I didn't like the existing app launchers on Wear OS. So I implemented this for myself. Let me know if you think a feature might be useful and I'll see whether I can add it.
Note, I don't have a Wear OS 3 watch myself. Most new Samsung Galaxy watches or Pixel Watch are on that version. So if you see a behavior for this app on your watch that you don't like feel free to email me and we can work together to get it to a pleasant experience for your watch as well.