Feature request: Tagging pages and filtering

Hi, I would like to have the possibility to tag the pages. I work in a school, where we have a lot of wiki pages for certain topics. It would be ideal if i could tag them with a specific tag for a topic and filter the pages by the tags.
There are lot of solutions for wikis, (Notion, Nimbus, Nuclino and so on …) I don’t get it why they all don’t allow tagging? Only Nimbus does it in a rudimentary way, but it lacks in filtering

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