I don't use a Debian based distro like Ubuntu anymore (arch BTW), but could you not just add their repo and do an apt update && apt upgrade
?
Honestly, I really dislike apt and how you have to add random repos which is why I don't use it anymore. I moved away even before snaps.
Ps, I love the AUR.
Awe...just heard about this.
Slrpnk.net outage