I don’t find it useful since you can’t navigate to other related entries with it.
A relation property:
You need to link the Relation property to a database under the main public page:
All contents on this site are written & stored in Notion (literally my 2nd brain & work OS) but some pages made pretty with custom domain name, SEO friendly & so on, with Potion. The following quirks are irrelevant for those using Notion Share-to-Web directly.
Let’s say you have an article with multiple tags based on a relation property, the 2nd tag will not be shown until you add a link to the tag page somewhere in your contents:
This won’t happen when you use Notion URL share directly: https://jymcheong.notion.site/Notion-Relational-Tags-bb353363b278436a8e6de8e94980dcd4
On the left is what appears in Notion app, the right Potion hosted page: