https://ono.unity3d.com/unity/unity/pull-request/146623
Fixed in 2022.2.0b11
Fixed in 2022.1.20f1
Fixed in 2021.3.9f1
Steps to reproduce:
1. Create a new project or open an existing one
2. Create a script or use an existing one
3. Select a GO in the Hierarchy
4. Drag and drop the script to attach between already existing components
Expected result: Blue indicator of when to let go to attach component is shown
Actual result: No blue indicator, a chain icon appears next the mouse, but it's not entirely responsive to the area where you have to drop the script to attach it as a component