I feel like he hasn't been risen up to the stature of John Carmack but if you look at the things he's shipped in his career (no less than Quake AND Windows NT) and at the sheer volume of content he produced during those halcyon days in the late 80s/90s when the PC emerged from dumb as rocks beige business box to premier gaming platform, he is a key figure.
I was too young and grew up too remote to have access to his writings as they were written but as an older engineer going back over his Graphics Black Book, the Zen of Assembly books and his Dr Dobbs articles, there's a lot of lessons that you can learn that still have a lot of value today.
Actually one of the best lessons - and most easily accessible - is in the first chapter of his graphics black book, he talks about the human element of optimisation, and that it is critical to optimise the right thing. He uses an example of a engineer he knew that in the era of early electronic calculators (still clunky and and slow, but getting faster all the time) honed his slide rule skills to wipe the floor with any desktop calculator operator. But he was spitting into the wind, it was clear calculators were getting faster and there was no more road with slide rules.
Ultimately he wasted effort on a legacy technology rather than leveraging what was up and coming.
In many ways this mirrored the PC, in its early days, it was slow, dumb and unwieldy, but it was improving at a rate of knots and eventually came to dominate.
Both Michael's Black Book and Zen of Assembly are on Github and maintained as PDF, Epub and other formats. They aren't terribly applicable technologically to computing today but they are very readable and contain a lot of general purpose problem solving and optimisation tips that are as applicable today as they were then.
https://github.com/jagregory/abrash-black-book
There have been few technical writers emerge that match Michael Abrash and it makes me so happy he's still hacking away at interesting problems today. Shame he doesn't write as much as he did, but I'm sure he's busy trying to usher in the metaverse (snowcrash had a big influence on him)!