One annoyance about the appimage paradigm is that it doesn’t automatically add an icon to the launcher (dock) on Ubuntu 22.04LTS. However, I found a way to do it on another forum:
This worked great for me. The only thing I had to change was that, in the example on the forum, he paths to the application and icons starts with ~. This didn’t work. I had to use an explicit path, i.e. /home/username. Now I have the icon the launcher (i.e. “Show Applications”) and I created a favorite in my dock.
This site seems to provide the definitive guide for doing this. For me, the one caveat is where to but the appimage. ~/bin is recommended, but I think that ~/.local/bin would be more appropriate.