Add a report-level filter to filter an entire report.
The visuals on the active page, and on all pages in the report, change to reflect the new filter.
You can sync a slicer and use it on any or all pages in a report.
1. On the Power BI Desktop View menu, select Sync slicers.

The Sync slicers pane appears between the Filters and Visualizations panes.

Reference:
https://docs.microsoft.com/en-us/power-bi/create-reports/power-bi-report-add-filter
https://docs.microsoft.com/en-us/power-bi/visuals/power-bi-visualization-slicers