This is terrible advice. Ask any urologist and they will tell you the same. OP, ask YOUR urologist about it.
Vasectomies can, in some circumstances, be reversed. You should not plan on yours being one of them. You should plan on it being permanent and irreversible.
It won’t officially work, but it’s not too hard to get it going. I just moved a similar box to 24H2 LTSC.
OP, you’ll probably need to run “setup.exe /product server”, or follow a recent guide. You’ll also need to do this for every major upgrade (i.e. yearly)
I agree though with the plan to use this as a test ground. I also recently upgraded a Lubuntu system to similar specs, and it runs pretty smoothly. But learning Linux takes a lot of time they don’t have.