before my vault data was saved in my dropbox. where is it now? (family version 7)

Hello @gbruit! 👋

If you've signed up for a 1Password account then your vault is stored locally on your device and is also encrypted and backed up to 1Password.com. You can verify that all of your items are in your 1Password account vault by logging in to your 1Password account on 1Password.com (in the browser, not the app).

To add your account to your other devices you can follow these steps and your items will magically appear on the other devices as well: How to add your 1Password account to the apps

If you still see your standalone Dropbox-synced vault then I recommend migrating it to your 1Password account: Migrate your existing 1Password data from standalone vaults to a 1Password account

Let me know if that helps. :)