Everyone is buying the same machines from ASML. Machines aren't the issue, its process. Its nitty gritty manufacturing details that no one will talk about (because those details are the "moat", the secret sauce that makes TSMC do something that Intel can't).
It looks like Intel has figured out 7nm, just much later than expected.
TSMC has competent leaders like Morris Chang and Mark Liu.
Intel had lost it's way after Andy Grove gave up the helm. Pat Gelsinger grew up under Gordon and Grove and the old guard is back.
Intel is institutionally paranoid, and Grove is part of that fault. The old guard, even in engineering, is retiring/dying and have not groomed successors because that could have threatened their political position.
Can Gelsinger really fix this? I suspect probably not.