Adobe AIR beat things like Electron and PhoneGap to market by years. IMHO the issue with Adobe is this insistence on 'open' still having various vary opinionated elements. Adobe Air for example had a lot of good ideas but still attempted to evangelize Flash and ActionScript. I _think_ MS is trying to pivot of that grave now with .NET Core. Time will tell if the Mono-to-Wasm or .NET Core Native projects have legs.
I was so very excited about Adobe Air and wrote a production application with it in 2009.
I _think_ a sweet spot for WASM data processing. The data visualization space should explode once I can with data in the browser at near native speed.