How to reproduce:
1. Open the attached “PropertiesNames.zip” project
2. In the Project window, select “Bug Demonstrator.asset” file
3. In the Inspector window, observe the PropertyDrawers

Expected result: PropertyDrawers names are: “Base Class Drawer” and “Child Class Drawer”
Actual result: PropertyDrawers names are: “Base Class Drawer” and “Base Class Drawer”

Reproducible with: 2022.3.0f1, 2022.3.10f1, 2023.1.14f1, 2023.2.0b10, 2023.3.0a6
Not reproducible with: 2021.3.30f1, 2022.2.21f

Reproduced on: macOS 13.5.2 (Intel)
Not reproducible on: No other environment tested

Note: this bug only happens if BaseClass is generic. Also, some details seem to influence which of the drawers is used for ChildClass: the alphabetic order of the drawer classes, whether the name of the drawer files matches the drawer classes, and even sometimes the order in which they appear when both drawers are in the same file (user’s info)