"Only dashboard owners can modify and delete dashboards, so you don’t
have to worry about other team members changing your shared dashboards."
Read more at help page:
thats possible. First, you need to share it:
Once done, users with the link will see the dashboard in the dashboards overview
Which enables them to clone the dashboard and adjust to their need
In case you need to collaborate with others on the same dashboard, we'll need to add such a feature. Just let us know.
Thanks for the feedback!