After you are done building reports and dashboards, share it with others. Create different share links, each with different filters, depending on what you want viewers to see all based on your own operational data, hierarchy and organization.
That means if you want to have a report for each location or each region of your organization, you do not need to create 10 different reports. Instead, you build one report and then create 10 shares with each share filtered to only show the data for a region or location.
When you later decide to make a small change to the report, you only have to do it once and everyone will see the change.