I was puzzled why Valve chose KDE to be the default desktop for a touchscreen device.
The default software selection, especially when SteamOS 3.0 had launched, clearly showed that they picked a setup they wanted to use for themselves (my setup is heavily customized by now but I clearly remember VIM having been set as default text editor). If Valve was interested in Desktop Mode being primarily for touch use, they could go with Plasma Mobile instead of Plasma Desktop. Plain Gnome without any extension is not good to use as either desktop or handheld. The Gnome developers can’t even make up their mind which shell to use for touch devices because they literally have two competing ones (Phosh and Gnome Shell Mobile).
The default software selection, especially when SteamOS 3.0 had launched, clearly showed that they picked a setup they wanted to use for themselves (my setup is heavily customized by now but I clearly remember VIM having been set as default text editor). If Valve was interested in Desktop Mode being primarily for touch use, they could go with Plasma Mobile instead of Plasma Desktop. Plain Gnome without any extension is not good to use as either desktop or handheld. The Gnome developers can’t even make up their mind which shell to use for touch devices because they literally have two competing ones (Phosh and Gnome Shell Mobile).