Intel QSV not showing up is asked half a dozen times on this forum, but the correct answer has not been mentioned.
If you look into the changelog, you will notice Voukoder version 11 upgraded to VPL library, then version 12 changed back to Media SDK, then version 13 upgraded to VPL library, again.
Why? Because Intel no longer wants to develop Media SDK. It is an old library that supported Broadwell (2014) all the way until TigerLake (2021). But Intel doesn't want to support older graphics hardware any longer, so they come up with this new library called VPL. This library supports TigerLake and later, so if you have older hardware, you will not be able to use QSV acceleration with VPL.
And so, if you have 8th generation hardware (KabyLake-R, 2018), you will need to download the old Voukoder 12 which uses Media SDK. Do not download 13 because you will not see the QSV option. (Or you can buy a new CPU if you'd like, and also a motherboard too because Intel sockets are not compatible across generation) It has nothing to do with the driver.
If you have 12th generation, then you want either Voukoder version 11 or 13.