Trello is of a certain vintage. It was a breath of fresh air when launched as it opened up new possibilities from the traditional office tools like docs & spreadsheets. But it's still a purpose-built tool that has a really tight coupling of interface-data, so it's not really a part of the next gen of tools like Airtable or Notion that are data-first and are way more flexible.

I still love Trello for its fantastic info architecture, the card interface, and the data I have in it, but I barely use it anymore because it's not as good at organizing as a database, and not as good at scaling to docs and projects as a tool like Notion.