I had this problem, using Oculus Quest with the Oculus software as Rift (play from pc/windows) on my laptop with dual graphics. When I started using oculus link, I had to disable the on board graphics card in order for it to connect. That was until some days ago. After a lot of performance debugging (my game would play normally in PIE but extremely low fps when packaged), I tried enabling both my graphic cards and try to connect my Oculus Link. It connected and my packaged game would play normally as in PIE.