There is no healing of thy bruise; thy wound is grievous: all that hear the bruit of thee shall clap the hands over thee: for upon whom hath not thy wickedness passed continually?
AAC always confused me. I’ve seen them use the extensions .m4a, .mp4, and .aac. But they’re all different are they not? I still have a few albums I downloaded on iTunes back in the day and they’re all .m4a. More confusing however, ALAC also uses the .m4a extension. I think Apple is bad at naming things.
fre:ac is a gui program that can do exactly what you need. It supports every codec you could ever want. Unless you want ATRAC for some weird reason.
Edit: Also it supports Linux, Windows, and MacOS.
Linux is Communism. Need I say more?
Welcome to Linux. We hope you enjoy your stay. That being said I’m wondering if It would work better in Debian. Linux Mint Debian Edition is basiclly a better Ubuntu. Ubuntu has weird bugs from what i’ve heard. I had a GTX series card and I always had problems with it. I had less issues on Arch based distros however. Maybe CachyOS or Garuda Linux might work better? Also, just a friendly warning Linux users like to argue with each other in the comments but it’s just how we show our love for each other. As for things (wi-fi) working one day and then broken the next I only had happen on Ubuntu based distros. Do with that what you will. I hope someone else here has better advice. Best of luck and feel free to ask questions if you actually read my rambalings for some reason.