For me the moment wearOS became a thing yet again is when Samsung decided to forego Tizen and went with WearOS with the galaxy watch 4 back in 2021. After that moment, a number of apps got developed for the WearOS platform. specifically WearOS 3.
We got apps like Spotify, Whatsapp, SoundCloud, Google Home and a whole host of apps being potentially announced for the upcoming wearOS watches like galaxy 6 and google watch 2.
Don’t get me started on the custom watch faces that are now available on the playstore. I would say more than a handful of watchfaces are being developed and released through the store.