I'm running a Laptop with a mobile 5800H, RTX3070 and 16GB DDR4 RAM. Runs it all fine, although upgrading to 32GB RAM shortly. I have the Quest 2 which is excellent.
The recommendation for a desktop 3060 or 2070 sounds like a good recommendation to me.
One word of caution is to think about your control interfaces before you buy because you will be blind to your laptop and HOTAS in VR.
Also MFDs can be a little hard to see by just a quick glance down at them, but it's well worth it for the incredible immersion it offers.