Almost?
Line trace is non physical.
You should run the test with touch simulation - such as having each plane slam into the other domino like.
That will tell you if physics are affected in any dofferent eay between 2 tris as complex and 1 cube as simple.
If we are taking bets, I’m betting the cube primitive will run a ton faster.
Additionally, anyone can safely bet that a domino like plane scenario will become unusable with chaos after around XxX instances.
My guess is around 400 bodies (unusable = sub 30fps at 4k native limited by CPU).
Ehile physx would survive to around 1500 or so.