Yeah fairly serious sim racer, pc is 3700x 16gb ram RTX 2080ti, is the new oculus better than the s version I had?
Yeah, it's better. And your system should have no problem running it.
You will need a USB cable to connect to your computer. Some are good, some are bad. The Link Cable from Oculus themselves is great but expensive. Just make sure you ask here before buying one. Getting one that can recharge the battery while you play is important.
Don't get me wrong, the Quest 2 is amazing, and I love mine. But a lot of what it's really good at is wasted on Sim Racing. With the Reverb G2, it will be great for Sim Racing right now, but, it will get even better when you upgrade your GPU. I would ask advice in the Reverb G2 thread before settling for the Quest 2.