opus 160 vbr is basically the endgame for stereo listening. even 96-128 is transparent to the vast majority of people.
for archival and mastering you'd still use flac.
for archival and mastering you'd still use flac.
Vorbis is very good, but managing the audio library, transcoding and transferring to the player are tedious and seem stuck in the 2000s.
Many of us have a large library of MP3s. The gain in quality and space from switching from MP3 V0 to Vorbis Q5 is negligible and does not justify the effort if you are not transcoding from FLAC.
If you're transcoding from FLAC, I think your best bet nowadays is just Opus, really.
The real limiting factor is the maximum size supported by microSD cards. If the player wasn't limited to 64GB, I wouldn't even bother transcoding.
We are at a stage where current solutions are just good enough in most case. Change is therefore becoming increasingly slow.
Even for music streaming, many services continue to use MP3 and AAC.