What is the expected behavior?

The benchmarks that live in test/benchmarks/ripple_adder.py don't set a value for seed_transpiler, resulting in noisy outputs that can hide small but significant changes. e.g. in track_depth_transpile_square_grid_ripple_adder, only Qiskit/qiskit#7205 is visible. https://qiskit.github.io/qiskit/#ripple_adder.RippleAdderTranspile.track_depth_transpile_square_grid_ripple_adder?commits=2fe852fa