open specific apps in fullscreen always ?

I'm not sure BTT can accomplish that but, basically;

there are certain apps that i want to always open in fullscren automatically

in what way can i make those specific apps go fullscreen as soon as I open them?

for example,let's say, I want that everytime i open "chrome" and "whatsapp", those apps are fullscren by default

pretty simple actualy, this seems to do the trick

if "specific app did launch", send keyboard shortcut "fn+F"

for some reason the "fullscreen if supported doesnt work", i imagine it's for videos only ?