Hey team. Probably a super noob question, but why don't I see an "update" button (to refresh the dash) when I look at GrowthBook dashboards. I've seen that my colleague have one. Is it a permissions thing? My profile shows I am tagged as a "collaborator"

Yes, it's a permissions thing. Clicking "Update" causes queries to run against your database, so we limit that to Analyst and Experimenter roles.