An Anonymous Coward writes:
MP3 decoding was already free and got recently included in Fedora. But now, encoding is also free according to Fraunhofer Institute for Integrated Circuits IIS: "On April 23, 2017, Technicolor's mp3 licensing program for certain mp3 related patents and software of Technicolor and Fraunhofer IIS has been terminated." The Wikipedia MP3 article confirms that.
So, do you still use an MP3 library or have you switched to another format or means of listening to music such as (spying built-in) streaming services?
I buy the vast majority of my music now on Google Play Music, which uses constant 320kbps MP3s. The rest I buy on Bandcamp, which I download using constant 320kbps MP3s.
I'd use Ogg Vorbis at q 10, but that would require buying physical CDs and then ripping and encoding them. No thanks.
As others have said: if you have your pick of lossy codecs, Opus wins, not Ogg/Vorbis.