They always make sure to be on the latest version of a supported LTS kernel. It's not old or outdated, it prefers a tried and tested, more stable kernel, over the newest but possibly not well supported kernel.
That said, you can simply switch kernels, even from mintupdate
's GUI. This is what I did for my recent AMD graphics card.
Also, they offer up-to-date drivers from the same channels Debian/Ubuntu does, and even make proprietary Nvidea drivers much easier than the Debian or Ubuntu they're based on. So any driver issues in Mint are going to be worse in those two. Maybe you're comparing it with Arch or Fedora, which are different experiences altogether.