There's an overview of the 2023 release requirements made by Madhu here: https://adndevblog.typepad.com/autocad/2022/04/autocad-2023-developer-update.html
The OEM platform requirements are identical.
Tech Soft 3D provides learning resources on their Developer Zone: https://developer.techsoft3d.com/platform-products/autocad_oem/training/
10 minutes into the video 'AutoCAD OEM Virtual Training: Basics of AutoCAD OEM' the .NET and C++ environment settings are explained for 2021 release, I'm sure you'll be able to figure it out for other releases and versions of Visual Studio.
Mark the reply as solution please, do others can find this information.
Thanks,
Paavo Rantanen, Tech Soft 3D