Question about getting to Vallejo

Idk if i just found a loophole to 37 I’ll delete to keep the secret if yall tell me it is

Firstly if yah were going to Vallejo do you take 37?

Im coming from Novato to Vallejo trying to avoid traffic i had the idea of driving ti Petaluma then taking that backroad then driving to the roundabout taking the other route to Vallejo would that save time?

Or turning left at the light then going form the back road taking the right at that soda shop and following the road to option 1?