"Our Universe today is expanding at somewhere around 70 km/s/Mpc, which means that for every megaparsec (about 3.26 million light-years) of distance an object is separated from another object, the expanding Universe contributes a redshift that's equivalent to a recessional motion of 70 km/s."

The key word in your sentence is "equivalent".

From my last article: https://medium.com/@quantumwormholes/understanding-the-planck-constant-d1fbfa9b1a04

The concept of spacetime expansion is more mathematical than physical, as lambda would just be the corrective factor relativity needs to invoke by considering spacetime is flat even with particles, as it doesn’t consider lensing effects below the planetary scale (let alone at the quantum level), so it slowly diverges from reality by accumulating tiny projection errors akin to mapping a sphere onto a plane. The lack of this level of detail makes relativity miss the physical cause for redshift, which must be reintroduced elsewhere, using lambda to correct the accounting. The current ΛCDM model still relies on this mechanism in the form of Dark Energy, which infuses new space into the universe, fueling expansion at the constant rate expressed in Hubble’s law. But the Hubble constant would just be another misleading factor translating the discrepancies between actual paths and Euclidean distances into ficticious recessional velocities between galaxies.