Disappearance of title bar and window borders

[ignace72]

Hello everyone.
I noticed that GTK3 applications no longer have title bars and window borders.
Sure, it's pretty, but there's something wrong.
I'm a person with a disability and this prevents me from correctly distinguishing the window borders.
There is GTK3-classic, but it doesn't work for all GTK3 windows, such as Vivaldi.
I'm well aware that we're in a world made only for able-bodied people, but I find it a bit cavalier to override users' choices decided with the window manager.
In addition to mixing windows together because they're indistinguishable, I've also lost features specific to my window manager, such as the ability to change the screen of a window with two mouse clicks.
It's not so much the decisions made by the GTK team that bother me, but the fact that they're being imposed on me without any options for reverting to classic behavior.
It's going to be nice when these changes come to The Gimp and LibreOffice (irony).
I never expected, when I first used GNU/Linux in 1994, that I'd find the "that's the way it is" of Windows a few decades later.
Especially since the title bar and window borders depend on the window manager and not on the application.
In the end, everyone does as they please, and from now on, I'll be fleeing GTK3 or higher applications like the plague.
Have a nice day.