Pretty much all of them except Mac.
Can speak personally for KDE, Sway, GNOME, and Windows 10.
And when they are invisible, they usually show up on mouse motion/window interaction, so it's still not as egregious.
Shout out to Xfce for being so boring/consistent for more than a decade.
iOS is way more prevalent and has hidden scroll bars unless scrolling. Thanks Apple.
Pretty much all of them except Mac.
Can speak personally for KDE, Sway, GNOME, and Windows 10.
And when they are invisible, they usually show up on mouse motion/window interaction, so it's still not as egregious.