When you view a tree in Landscape morte, the name, DOB-DOD, and FS ID are displayed.
When you switch to Portrait mode, FS ID is omitted.
Windows 10, Chrome v 98.0.4758.102 (Official Build) (32-bit)
If you hover over the individual's box, in Portrait Mode, the PID appears. Windows 10, Chrome 98.0 4758.102 and Firefox 97.0.1.
But there's not an option to always show it so I can print a portrait formatted tree with the ID showing?