When the user navigates back to the report, the bookmark navigator button and show/hide the slicer should be retained in the specific scenario.

The user unselects "Allow users to change filter types" on the report setting of Power BI Service or sets the personal bookmark on the report.

When the user navigates back to the report, the bookmark navigator button and show/hide the slicer should be retained. 

Reference

https://docs.microsoft.com/en-us/power-bi/create-reports/power-bi-report-filter?tabs=powerbi-service#restrict-changes-to-filter-type

https://docs.microsoft.com/en-us/power-bi/consumer/end-user-bookmarks#use-personal-bookmarks-to-save-insights-and-build-stories-in-power-bi