This article (and every other article I can find on the ban) conflates whipped cream cans[1] with whipped cream chargers[2], which is what the law[3] bans.
Are these really considered for professional use only in US? Here we use them at home since the result is infinitely better than the instant whipped cream variants.
More or less. My local grocery stores don't carry the device or the cartridges.
Professional or higher end cooking stores might carry them, but the easiest place to get them near me would be a head shop (the places that sell pipes and bongs and what not, if that phrase doesn't internationalize well). Virtually all the head shops near me carry both the device and the cartridge.
[1] https://www.gogetdelivery.com/media/catalog/product/cache/1/...
[2] https://i5.walmartimages.com/asr/b73db9f0-6258-47a6-9954-bd7...
[3] https://legiscan.com/NY/text/A00754/2021