You don't see you're missing out because there's people spending hours to adapt the website to make it work...
For the features, I could mention from what I ran into myself: input[type="number"] (yes, they still have not fixed their implementation after all those years...), the full screen api, Media Source Extensions, css ::selection, Intersection Observers, autofocus (yes, even that does not work), I could add a lot more here.
And that's not mentioning the various bugs you have on this platforms, again some example of what I ran into:
There's plenty of weird quirks like this everywhere. It's never completely broken but it's pretty comparable to the time you spend fixing things on IE11 honestly.
For the features, I could mention from what I ran into myself: input[type="number"] (yes, they still have not fixed their implementation after all those years...), the full screen api, Media Source Extensions, css ::selection, Intersection Observers, autofocus (yes, even that does not work), I could add a lot more here.
And that's not mentioning the various bugs you have on this platforms, again some example of what I ran into:
- https://stackoverflow.com/questions/18047353/fix-css-hover-o... (yes, you read it well, even tapping on an element does not work as normal)
- https://stackoverflow.com/questions/11768364/svg-scaling-iss... (svg rendering issues)
- https://stackoverflow.com/questions/52826005/workaround-for-... (iframe focus bug)
There's plenty of weird quirks like this everywhere. It's never completely broken but it's pretty comparable to the time you spend fixing things on IE11 honestly.