The flatpak app continue to work in background and a new run instantiate a new process which never closes

`flatpak ps`
```
1863653411 36822 io.github.libredirect.frontends-manager org.gnome.Platform
1479846223 37257 io.github.libredirect.frontends-manager org.gnome.Platform
2688344502 37810 io.github.libredirect.frontends-manager org.gnome.Platform
1477512546 38094 io.github.libredirect.frontends-manager org.gnome.Platform
```