Hi @vuk,
I was looking at F-Droid apps recently and noticed this information.
I am not sure of the implications as I am not a developer, but felt that it should be mentioned on this forum for others who may be.
Recent posts have mentioned TiddlyDesktopRS on Android Play Store - Test phase and maybe @BurningTreeC is more aware of the implications.
There has also been a petition set-up Stop Google from limiting APK file usage links are on the original article link above.