Runtime on a Linux desktop machine is about 20 minutes. The point is that it's a workload dominated by small file operations, and in particular small file stat operations, that WSL is particularly bad at. And really it's not so crazy a workload.
Some people may have more than one test.
My test is that W10 take half hour every time that I start it, hitting very hard the hard disk and being barely usable.
However I get ready to work on Ubuntu on less that a minute.
I think it does because the difference adds up quickly with large projects