How to reproduce:
1. Open the attached project from comments
2. Open Scene "Lock-on Target"
3. Select "Orbital Follow" in the Hierarchy
4. Have Game and Scene Views side to side
5. Resize Game View on one side while having the "Orbital Follow" GO selected in Hierarchy
6. Open the dropdown menu for "Position Control" under the Component "Cinemachine Camera"
7. Repeat steps from step 5 until the dropdown menu opens somewhere not under the field that you clicked

Expected result: Dropdown menu opens under the field that the user is clicking
Actual result: The Dropdown menu opens randomly on the left side of the Editor

Reproducible with: 2023.2.0a21, 2023.2.0a23
Not reproducible with: 2021.3.28f1, 2022.3.5f1, 2023.1.4f1 (No new context menu), 2023.2.0a20

Note: Reproducing the issue might be a bit tricky, it seems it happens more frequently when the Editor is maximized, repeating reproduction steps might also increase the likelihood of reproduction

Reproduced on: Windows 11