If you’re this confident it’s not required then you might want to inform VRChat to not tell users to install Visual C++ Redistributable to fix possible issues with audio.
And at the bottom of that link it says the following.
If you can still hear world sounds but not any voices, please try installing the following file (Microsoft Visual C++ 2019 Redist): https://aka.ms/vs/16/release/vc_redist.x64.exe