Opus is great. I encode all my music in Opus for playback (after buying it in FLAC).
Are all browsers supporting it now? I remember in the past Apple staunchly refused to support Opus and Ogg container. Is it better now after they joined Alliance for Open Media?
All major browsers now implement WebRTC, including Opus support. Also, most browsers now support Opus playback in HTML5, though AFAIK Safari only supports it in the CAF container. See https://caniuse.com/#search=opus
Are all browsers supporting it now? I remember in the past Apple staunchly refused to support Opus and Ogg container. Is it better now after they joined Alliance for Open Media?