Local filters are applied on each individual chart. By ranking, local filters will be used first, followed by global filters. Which means if you have both global and local filters of the same type applied, the local filter will be respected first. See example below.
Example — Interaction between Global and Local Filters
In this example, the global date filter is set to ‘since 1/1/2020’ but there is a local date filter applied on the Hires (ATS) - YTD chart that is set to ‘since 1/1/2023’. As you can see, the chart is filtered to the months ‘since 1/1/2023’ so the local date filter is being used over the global filter.
This interaction only works when the global and local filters are the same. If you use a different global versus local
filter, the global filter will still be applied.