If your going this route, there is also https://www.bookstackapp.com which sits on top of Laravel, is open source, self-hosted, and free. Just sharing.
Haha. I’m definitely sounding a bit that way. Though, it’s opensource, so nobody needs to be sold on it.
We’re too deep in Notion internally to jump to something else now, but if was going to try anything else, given the Linear.app team’s track record, this would definitely be my first evaluation.
I've checked out Outline but that was some time ago. Its featureset seems limited to just regular notes. Definitely well put together, but the version I tried really wasn't a replacement for something like Notion.