There are many instances in the editor where reorderable lists are overlapped by the elements below them, cutting off part of the + and - controls.

Seen in Player Settings and the XR Management settings windows.

Looks like a regression in 2019.3.0a12

1. Open Unity
2. Open the Attached Project
3. Go to Edit > Project Settings > Player
4. Open the Other Settings section
5. Untick "Auto Graphics API for Linux"

Expected Result:
The reorderable lists do not overlap or get overlapped by any other UI elements in the window.

Actual Result:
The bottom of the Linux Graphics API list is overlapped by the Color Gamut controls.

Tested on Windows.

Occurs on 2019.3.0a12, 2020.1.0a1

Does not occur on 2019.3.0a11