The answer is that you don’t need to enable Release Driver at all, since your Focusrite driver is multi-client.
The only thing you have to do is to match the sample rate in Windows audio settings and disable Exclusive Mode for these channels.
You’ll then be able to hear the audio from Windows and any program at the same time and without any limitation, and this is also valid for the inputs.
Say no to the Release Driver struggle !
How to do that :
Post explaining how to do the above.
I hope this helps.