Anything needs to be shown on a table, calendar, etc. is a database. It doesn't matter if user deliberately uses it or not. One can have a look at all the Notio

Anything needs to be shown on a table, calendar, etc. is a database. It doesn't matter if user deliberately uses it or not. One can have a look at all the Notion's templates (https://www.notion.so/templates https://www.notion.so/templates). All featured templates have databases. I also looked at all categories and their front pages filled with templates /w databases. Maybe 1 per category without it.