When using a keyboard to navigate a public Power BI dashboard, I experienced a keyboard trap when interacting with a slicer in the form of a dropdown. Once I made my selection within the slicer, I could only navigate between the slicer item dropdown and clear selections icon within the slicer (keyboard trap).
Under the "On visual" section of the same documentation it lists "Exit a layer or visual" by pressing "Esc". This is a solution for the keyboard trap I was experiencing, however, this action should also be listed under the "Slicer" section.
Thanks for your reflecting. Actually the slicer is also considerd as a visualization type in Power BI Desktop which is available on the visualization pane, so the general visual keyboard shortcuts which are mentioned in 'On Visual' part may not list in the 'Slicer' part in the document. If there is something special needed to be noticed, it will be listed.