Hello, thanks for your tutorial!
I'm new in QIIME2 and followed your tutorial to install in WSL. I successfully installed the Miniconda, but in the part of create an conda environment for qiime2 installation there is a fail:
Collecting package metadata (repodata.json): failed
This looks like some sort of network issue - we've actually seen this error come up quite a few times on the forum. Here is a good forum post with a couple of suggestions - give them a try and let me know if you are still running into the same problem!