Yea, that's pretty much how things work today. Generally, there is a little square piece of paper with a url to go read installation instructions. Then it's simply not practical to describe all the settings in adrenaline with a hard copy as it is always changing. Additionally, the best way to configure a GPU is very different given the usage: work, general home, gaming. Then you have to consider laptop vs desktop, and the cooling ability.
Then there is the "what sort of gamer are you?" Are you sensitive to screen tearing, input latency, etc...? I personally configure my system to be quiet and have a very smooth gaming experience (VRR/fressync). Being fairly old, l latency is generally not an issue for me unless it is drastically poor, unlike some young competitive FPS player.
There is no one setup fits all. It's best to describe what sort of experience and player you are, and your hardware, then hope someone helps you, or you can google it. This is just something you have to learn if you want to be a PC gamer.