System Information
Operating system: Darwin-19.5.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 455 OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.9.15
Blender Version
Broken: version: 2.91.0 Alpha e4932d1167f4
Short description of error
Missed the "Online Manual" menu item, for almost all elements in the Preferences.
For some others, too, such as the "Mode" (Set, Extend, Subtract) of selection tools.
