How to reproduce:
1. Create a new project
2. Open the Search window (Window → Search → New Window | or | CTRL + K)
3. Click anywhere else in the Editor

Expected result: The Search window either gets closed or minimized
Actual result: The Editor is focused, but the Search window stays on top of the Editor process

Reproducible with: 2021.3.39f1, 2022.3.31f1, 6000.0.4f1

Reproduced on: Windows 11
Not reproduced on: No other environment tested

Notes:
- The Search window was used as an example of the behaviour of the issue, also reproducible with other feature windows
- This is a minor/usability issue as when focusing other windows, the focused window should be put in front and not ignored, the correct behaviour can be observed when using the un-docked Package Manager and the Search windows together
- The reporter has noted that this is a regression, but CQA could not verify this as it is reproducible even on older versions