A company called Infleqtion already has an RF sensing product that uses Rydberg atoms.
Is it really a product already? There are a number of renders but the 'products' link does not work for me.
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Not sure if it's being "actively" used in real-world deployments yet, but it does exist.
https://www.prnewswire.com/news-releases/infleqtions-quantum...
Ok, I found a video:
https://www.youtube.com/watch?v=j18K7MZdyY8
That looks like it is definitely real but also extremely fragile and there is no mention of any performance specs. But that's 3 years old now and no product(s) available yet.