Smartphones and polarized lenses

The video discusses how light reflects from flat surfaces, causing glare and reduced visibility. Polarized lenses help by filtering out this light but can affect the viewing of GPS devices and cell phones. Boaters and pilots have reported issues with LCD panels when wearing polarized glasses. A solution for smartphone visibility is to rotate the device 90 degrees to align the filters.

What kind of light do polarized lenses block?

What visual issues have boaters and pilots reported when wearing polarized lenses?