Earlier quoted context omitted.
I would pay twice as much upfront but that's not an option. So instead I pirate Windows 10 Enterprise which is an absolute dream OS for a prosumer. I'd buy it but I haven't been able to figure out how to.
That's exactly what you do. Find a guide on buying LTSC through a Microsoft partner. It's expensive but you can effectively install it many times. https://community.spiceworks.com/topic/2167558-explicit-inst...
I'm on version 21H1 -- is this offered with the 2019 LTSC license? Or stuck with version 1909? I'm not sure that really matters for me personally - but sometimes it's confusing how this all works compared to the consumer editions. By confusing I just really just mean they don't seem offer this information upfront.