As soon as I read the thread title I knew all the answers were going to be about the unofficial stuff... some things never change 🤣
The unofficial patches only add bloat, change the appearence and are simply pointless if you are not one of these people who are desperately trying to run all sorts of modern stuff on such a computer. As far as unofficial patches go, I find that NUSB is all you really need if you have that rig just for gaming.
On topic, I was never able to locate any "all-in-one" update packs authored by MS either. On a quick search this might be the closest thing to it; note that it is said to install bloatware, however. It includes unofficial stuff, but it looks like you can select what to install, maybe going by this list. I did not install this myself and can't guarantee that it does what it's said to do, but it may be worth a try.
It also seems that you can install all of the fixes manually from the MS site going by the second link, but this would be rather tedious.