If models are linked, you can easily import charts from one model into another, just like you can import variables:
1
Click the + icon on the bottom left in your dashboard and select Import chart.
2
Click the model from which you want to import a chart and select or search for the desired chart.
The imported chart will appear alongside your other charts, the only difference being its title is Blue.
Note that if you are giving people access to only the model that imports charts, they will not be able to view the charts properly UNLESS you give them access to the underlying variables and data that the chart leverages. You can do this either by:
Importing the variables or data that the chart utilizes into the model you are sharing with them