[waysa]

According to caniuse.com [1] all major browsers support ogg vorbis except for one: Safari.

[1] https://caniuse.com/ogg-vorbis

[lifthrasiir]

And even that is limited to iOS, macOS Safari does support Vorbis (with some limitations). It is so widely supported that you would consider a JS decoder for the iOS polyfill.

[mattigames]

Yeah, that's what Wikipedia do using this https://github.com/brion/ogv.js/

[earthboundkid]

But why not choose a format that every device supports that is also non-proprietary?

[pseudalopex]

MP3 was proprietary when they started. The Vorbis polyfill works. Probably many files do not have a higher quality copy to encode.

[kibibu]

Wikimedia commons recommends Ogg Opus over Vorbis these days