Setup may be a one time sunk cost of opaque misery for you, but it's a lifetime of never getting any closer to truth understanding or enlightenment, upon a difficult opaque system that doesn't respect you & won't show you whats happening & has an array of barely supported weird add-on tools to accomplish the most basic software installs & setups.
It'll be a one time cost for your setup. Then a one time cost for the next setup as the student tries to do something else. Then another cost for the next effort. And the student will never gain any skill understanding or comprehension for any of these barely related steps.
Wsl2 is indeed savings Microsoft's bacon, by being some place where there are clear rules & patterns & behaviors, & where there's some kind of coherent underlying substrate. WSL2 is saving MS's ass. By not being Microsoft and by especially not being Windows. By being something social, with layers of accepted communal tools & platform.