The flipper zero is an FCC-approved toy with an itty bitty teeny tiny subset of the capabilities of proper wide-band SDR kit, e.g. HackRF One. This isn't due to firmware locks that can be jailbroken - there is no wide-band SDR hardware present. This is just a collection of a small handful of narrow-band SDR chips.

Neither serious threat actors nor corporate red teams waste their time with such trivial things.