Heroku Security Question

I think I know the answer to this, but I want to confirm…

If I deploy Metabase to Heroku (and configure it to query my Heroku Postgres databases), there’s no behind-the-scenes, administrator access granted to the Metabase team, right?

I’m asking because when I deploy “add-ons” in the Heroku environment, the teams that support those add-ons DO have administrator access to my data (to support their environments).

But this seems to be different.