Blender Version
Broken: 2.91.0
Worked: 2.90.1, 2.83

Short description of error
When rotating objects without entering an axis (e.g. "R 20"), rotation used to be clockwise. Since 2.91.0, it rotates counter-clockwise.
Affects perspective and orthographic views.
When specifying an axis, e.g. "R Z 20", rotation always occurs CCW, relative to the rotation axis.

I realise this might actually be intended behavior since 2.91, but I was pretty surprised because I didn't find any comment about this in the release notes and it kinda breaks my muscle memory.

Exact steps for others to reproduce the error

• Open Blender 2.91
• rotate any object by typing "R 20"