Have you tried Arch or Arch-based distribution? I am using Manjaro, and I feel that 'pamac' is a good package manager in terms of keeping up with package update. Arch and its derivatives mainly use 2 repositories, Arch Official Repository and Arch User Repository (AUR). Sometimes, a distribution also has its own repository. AUR is what blown me away a a former Ubuntu user. Because, it often has the package I want to install, even if has no official build for Arch.