I'm not sure this is the reason or a big reason, but I think this is very difficult to do in Linux, sadly.
What makes Linux great is also its biggest handicap, in my opinion, when it comes to User Experience: the fragmentation of UI frameworks and libraries.
I imagine having this control between Qt, GTK and other UI libraries and electron-type-apps os difficult if not impossible.
It works perfectly on Gnome (ubuntu) though. There is simple toggle you have to do in one of the standard control panels as well.
I am surprised this issue is not gaining traction with the KDE crowd, as I imagine a substantial part of the userbase are emacs users and used to emacs keybindings.
What makes Linux great is also its biggest handicap, in my opinion, when it comes to User Experience: the fragmentation of UI frameworks and libraries.
I imagine having this control between Qt, GTK and other UI libraries and electron-type-apps os difficult if not impossible.