it is the way of the world according to microcrap, it would have originally come with W7 or possibly W8 depending on age, so don't expect W10 to blow you away.. My old  core 2 duo Insperon runs Mint quite well with its max 4 gb of ram, it runs Debian better, MX better still and is fine with Parrot [don't bother with puppy, never liked it]it's saddled with an install of Win 10.
KGIII, on the other hand, seems to feel they come from hell. I say, if they work, use them!
For a mainstream distro, which gets regular updates - including kernel upgrades - yes,
@forester :-Better quality graphics may be a reason for some to use the proprietary driver, plus nVidia utilities.
I guess you're like me, Darren. As Puppy users of long-standing, we both know the value of keeping old hardware useful.A Nice Dell the D630 - Nice purchase.