I haven't tried it yet, but I did find this guide that might be useful:

https://github.com/1999AZZAR/use-waydroid-on-x11

If you try it please let me know how it went.

Waydroid is based on Anbox (https://github.com/anbox) which is no longer being maintained, but should still work for older Android versions on LTS distros.

I think you can use something like Weston in X11 to run Waydroid.