I was lucky enough to get oculus quest. I bought beat saber on the quest itself but when I go to the oculus store on my PC it wants me to purchase it again. Since I am new to all this. If you buy something on the quest vs the PC is that different.
in this case yes you have to buy it a 2nd time. Its left up to the developers to decide if they want to allow crossbuy between quest and pc so it varies between titles. There are a number of crossbuy titles but most of the popular ones dont allow it
The Quest Library and the PC/Rift store are 2 different storefronts, and there’s a 3rd store for Go. It is confusing, but make sure you buy the right one for your headset. With a Quest, you can use Link to play Rift store games.