All versions of the .NET Framework can coexist with each other fine. I've had 1.0, 1.1, 2.0, 3.0, and 3.5 installed all at once and there were no problems.
These are the steps you need to enable .NET Framework 2.0 and 3.5 in Windows 11: .NET is a platform comprising various tools, programming languages, and other resources necessary for building a ...