UI Toolkit: Gaps between VisualElements with Grow 1, when scaled with "Scale With Screen Size"

Reproduction steps:

1. Open the attached project
2. Open the “/Assets/SampleScene.unity” Scene
3. Open the Game View and observe the white rectangles
4. Change the resolution to “WXGA (1366x768)” in the Game View’s Control Bar
5. Observe the white rectangles

Expected result: No gap in the middle of the white rectangles
Actual result: There’s a gap in the middle of the white rectangles

Reproducible with: 2021.3.8f1, 2022.1.12f1, 2022.2.0a5
Not reproducible with: 2022.2.0a6, 2022.2.0b3, 2023.1.0a5
Could not test with: 2020.3.37f1 (UIDocument class is not implemented)

Reproducible on: Windows 10 (21H2)