They’re just going to source the allowed parts from Red Bull basically exactly like they used to do with Toro Rosso.
To think that will equate to a RB19 is a bit insane in my opinion. They will likely improve, but still be a mid midfield team like they used to be with Toro Rosso.
I just did a few more laps and you're exactly correct, the tire is indeed skipping (if it's not entirely off the ground) going around multiple corners due to the overall stiffness.
Makes for a tricky car to drive!