I’m looking for ones that ideally don’t log IP. Is there a guide somewhere that looks into each of these instances and whether or not they fulfill the privacy promise?
I’m most interested in Invidious.
there is no way to verify they don’t actually log anything
Eh. You can inspect the source code. Certainly there’s no way to verify they haven’t modified the source code but also why would they modify it to store your IP?
I trust my folks at sdf as fellow unix hackers.
Trusting is good, but… don’t trusting is better…
DIY
As another commenter said, it’s not possible to verify. You’ll just have to take each instance’s word for it.
Instance lists for some privacy front-ends will point out additonal info, such as if each instance is using CloudFlare or not (this may or may not be useful depending on if you distrust CloudFlare), some other services (like Rimgo, a private Imgur frontend) lets the instance hoster customize the privacy policy. But once again, this is all relying on the instance host telling the truth.