they can be if you visit AppImageHub and install the AppImageLauncher - doesn’t work for me though

I use AM/AppMan with a local install. So far, it’s been pretty good.

I believe it’s a consequence of how flatpaks are sandboxed. The software itself might be small, but that sandbox also has to contain every dependency that software requires. It can get distressing when you’re on a 500GB ssd.

If you can run it, it shouldn’t be more than a couple of clicks to find it.