when you say "something is not properly supported" what do you mean? like nvidia/amd haven't released graphics drivers yet for linux? or some peripheral isn't recognized?

basically, by buying new hardware just after it launches, you're effectively one of the very first people to boot that hardware with linux. you can usually make it work but most hardware manufacturers don't work with the linux devs to make sure support is in place. so devs have to get ahold of the hardware retail and then fix whatever is broken. the exception to this is AMD and Intel - both companies have people working on linux so they will merge support for new hardware into the kernel before that new hardware is even announced to the public. so if you stick to cpus and video cards from those two manufacturers, you'll make your linux life easier.

even then, though, the support might exist in the latest version of the kernel, but the last Ubuntu or Mint release is still several versions behind. so you're effectively forced to use a distro that releases updates much faster (ie rolling release), or be willing to make modifications to the system post-install to get it to work.

tl;dr: you've got a constellation of requirements that can't all be met at the same time. either give it 3 to 6 months after release of new hardware or be willing to learn how to make it work. expecting software to work with hardware it hasn't yet been designed to work with is always going to be a recipe for failure.