I love how notion allows you to attach an emoji to a specific page, and that takes the place of the page icon:
This has been discussed for Roam too, but the conclusion is that you can just add an emoji to the page title to achieve the same result.
Hmm I think the notion ui around page emojis makes it much more accessible and the replacement of the page icon elsewhere in the app makes for a little different of ui than adding it to the front of a title. In the latter case you would just get the page icon along with the emoji which is super bloated if used in any menu or reference
For anyone who found themselves here years later like me, this is now natively supported in Logseq with the icon:: page property!