The quantum considerations have more to do with the molecular level. There are definitely quantum effects and considerations for what's happening at the level o

The quantum considerations have more to do with the molecular level. There are definitely quantum effects and considerations for what's happening at the level of enzymes and chemical reactions and they might matter with neurotransmitters at the synapse, and if they matter those effects could be amplified to neuron scale electrical impulses. There could be quantum effects that play a key role in sensory perception (we're talking the level of photons and molecules here too). You have to remember that biology is incredibly ordered and very physically small things matter so all these effects are on the table. Do they actually matter? Unknown it's complicated (outside of a few enzymes and systems where basic things like tunneling are clearly happening)