[ahmedfromtunis]

> what concerns me is Google's and Apple's incentives to help them get better

I think that despite that, they did a decently good job. A few years ago, I created a voice-only social app: people can easily record and send voice memos.

I built it using fairly new tech at the time: the web audio api and native web components. (I refuse to touch react-style frameworks with a 20-foot pole.) It was 99% compatible with all major web browsers from the get-go, even with its fairly advanced "tech."

The only thing that wasn't cross-platform was the audio files themselves. I had to make a deep-dive into the world of encodings and codecs so that I can offer users audio files in the formats that work on their machines.

Obviously, there are areas where cross-platform-ity (??) is abysmal, but things will probably continue to evolve for the best ― hopefully.

And yes, PWAs with their offline capabilities are just awesome!