Standing desks are a placebo and nobody wants to hear it
Standing still is not exercise. It is sitting with extra steps and sore feet. You did not fix your health by raising a monitor twelve inches.
The people who are actually in shape are not standing at their desks. They walk, they lift, they sleep and they eat real food. Nobody can sell you a subscription for that, which is exactly why you never see an ad for it.
So ask the uncomfortable question. If a two hundred dollar desk fixed your back, why is your back still bad.