If by “configuring wifi by hand” you mean writing config files by hand, that’s actually not necessary with plain wpa_supplicant too. There is wpa-gui (or wpa-cute if you prefer Qt over GTK), which is basically a GUI frontend to wpa_supplicant, which makes adding new networks nearly as easy as with NetworkManager. But it’s a far less modern looking UI than the NM frontends.

The Steam hardware survey will skew towards whatever it is the Steamdeck uses in the surveyed categories.

The special thing about vim are the different modes. In a editor which does not support modal editing, you can’t bind a letter key directly to a function, or else you can’t type that letter any more.