System Information
Operating system: Darwin-19.5.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 5500M OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.9.15

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-08-15 17:06, hash: rB2c61c3d733cf
Worked: never worke in 2.8+

Short description of error
Left Mouse dragging on those two buttons can lead to unexpected/undesired behavior.

The dragging executes whatever tool is currently active:

• if the selection tool is active, a selection is drawn
• if the move tool is active and an object selected, the object is moved

etc.

Why this is a problem:
If one of these two buttons get accidentally dragged a little, it can apply a tiny yet destructive change to your scene which isn't noticed at first (as this behavior is unexpected).

Exact steps for others to reproduce the error

This example is for the move tool:

1. Open a new scene
2. Activate the move tool
3. Select the cube

4. Drag the camera or perspective button to the side
5. See how the cube is moved

This example is for sculpting:

1. Open new sculpting scene

2. Drag the camera or perspective button to the side
3. See how the mesh gets distorted

Thanks