I'd like to replace wpa_supplicant with iwd and use it for my wifi networking. This is so that I can use and test Network Manager using iwd. I can't seem to find instructions around relating to Ubuntu this anywhere.
If you read the 19.04 release notes, it says:
IWD can now be enabled for use with Network Manager. IWD is a new alternative to wpa supplicant and is in testing for consideration in the future.