A: Yes. Each "year" of the Visual C++ Redistributable is a separate standalone program. Having the 2022 version does not give you the 2008 files. You need to install the specific version the software asks for.
: Yes. Despite being old, it is stable and secure. Microsoft provides it as a legacy component. It runs perfectly on Windows 11 via the Windows compatibility layer (WinSxS).
Sometimes the Visual C++ 2008 SP1 package alone does not solve all problems. Here are related downloads you may need.