Sadly there is still no alternative to Notion (it’s not a note taking app, it’s database). Only SiYuan is somewhat close to Notion in its database capabilities, but comes with its own set of issues.
I would absolutely love to self-host real Notion alternative!
I think we need to level the playing field with these religious zealots. We need to counter with bold statement in a language they understand, using the same tools they use, like this crude draft: