If you open the
Airport Utility on you Mac, there is a option
Add WPS Printer.
Since Apple explicitly named it
Add WPS Printer..., can you use this for other devices then Printers?
Yes, you can!
Airport Utilityv6.3.8 (on macOS 10.13.2)
Airport Extreme 802.11ac
Although I'm not sure if it works with everything, I'm fairly positive it will work for many other devices that support WPS.