Hi Anthony, I've deployed the XRM Consultancy tagging app for a university's student system and an auto club's member engagement system. Both were good were well received, although in practice, tagging is never as popular with the users as you hope in might be in your design workshops.
I'd like to see the XRM Consultancy's Tagging solution modernised into a PCF component to take full advantage of the Unified Interface (it works fine, but looks a bit 'classic').
You might also want to check out these free PCF components: https://pcf.gallery/categories#tags
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