Im pretty sure Nintendo has decided against a browser. Keeping a browser up to date, compatible and secure is a pretty big job these days.

Considering that the browser has been a point of ingress for hacking their devices several times and that use is minimal we won’t see a full browser any time soon unless something has really changed on the management team of the switch os recently

As far as os features go, propper folders and sorting options on par with the 3DS would be higher on my list.

Don’t get me wrong, personally I could see a lot of use cases for streaming video etc… But I don’t think it is a realistic wish at this point.