The flipper zero is ISED(CA FCC equivelant) conformant/certified. In stock configuration, it transmits only in bands where no license is required, such as the ISM bands.

However, the operator is ultimately responsible for the emissions of their devices.

I wasn't aware of the Russian link. Does anyone have links to public statements from the founders?

They appear to live in London, so silence isn't good enough in my book.

Though I've long ago stopped buying toys from China, so this is probably ruled out for me on that basis.