This seems non-obvious. How many salmon are farmed vs wild right now? Salmon is already protected and very expensive, so what's the potential for increase in wild population? 2x? 10x? And there would still be demand for "the real thing".

Farmed salmon incurs a heavy cost to the environment that surrounds said farms.

Demand for real salmon will still be around but it will be a rare delicacy, which is totally OK.

It wasn't a question about what's the best outcome for the environment. Parent poster claimed, "Widespread adoption of this technology would likely lead to more total salmon lives". Eliminating farmed salmon would be good for he environment, but it reduces the number of salmon lives.

Is wildcaught salmon popular and available? I literally cannot find any - anywhere. Then again I'm in Denver, which is not well known for its seafood.

It is seasonally fished, and too early for it to show up. If your stores are sourcing it from California, it might show up in May, or early summer.

In 2020 fishing was allowed for wild King salmon on these dates:

May: 1-12, 18-31 June 1-6, 14-30 July 13-31 August 1-28

Sockeye salmon is all wild, so if your store carries those, there you go.

Wild populations might not budge much as long as their historic spawning grounds up estuaries remain scarred by human development.