Vertical farming mostly feels like a solution in search of a problem. It uses relatively expensive technology to produce low-value products. Putting seeds in the ground, tilling, and waiting is absurdly cheap compared to building growhouses. For some perspective, what farms actually do extend growing seasons is put "greenhouses" around cold-sensitive crops like tomatoes, but a "greenhouse" in this case is a wire hoop with clear plastic around it.

It's interesting if you want to support 50B people on Earth, but the resources required to build it out mean it isn't really even a viable solution for restoring farmland to wildland without massive amounts of mining.