Same experience here. For stationary position games I found it fine, but anything with any kind of walking handled by the controllers it felt awful.

Interestingly I tried out F1 2022 in PCVR mode with it and was surprised to find that didn't make me feel ill. A lot of it comes down to the refresh rate and quality of tracking as its the lag that causes a lot of the nausea.

I think that has more to do with mental framing. Your brain is used to being "in a car" and having weird motion. You also usually have the inside of the car being stationary in your field of vision, meaning your brain can look at that and feel fine that you aren't moving.