Anki opens to a blank window then closes after ~20–30s (even in Safe Mode)

I don’t think I saw your response to this.

I should check too – you made it past the launcher step, right? Past this screen:

– so the blank window that is opening for you is the actual Anki window, with this at the top?
image

It could be something that doesn’t seem like a VPN to you – there are apps related to “privacy” and “security” that are really VPNs at heart.

What about this suggestion – Astrill prevents Anki from starting - #13 by abdo ? I notice that’s almost the same as the command in your output, but your path name doesn’t include a username, so I wonder if it’s finding the right directory.