How did you install genymotion in Endless OS?
As of version 3.0 Endless OS has adopted Flatpak, a new application distribution system
https://support.endlessm.com/hc/en/articles/115001980483-O-que-é-o-Flatpak-
How to Install Virtual machine on Endless OS Tutorial: https://community.endlessos.com/t/how-to-install-virtual-machine-on-endless-os/6695