Is your feature request related to a problem? Please describe.
Nowadays, many GNU/Linux based mobile operating systems are shaping up, and unavailability of nice apps (compared to Android/iOS) is a big issue. Both GNOME based (phosh) and KDE Plasma based (plasma-mobile) mobile desktop environment are available.

Safe Eyes needs to be compatible with them.

Describe the solution you'd like
Safe Eyes should be perfectly compatible with Phosh and Plasma Mobile

Describe alternatives you've considered
N/A

Additional context
I don't have a device to test how the existing version of Safe Eyes work with these. Any feedback would be appreciated.

Adapting GTK4 (which is now a work in progress) may be a big step towards compatibility with such mobile DEs.