Since Pixel devices do not have a microSD card slot, it is possible to safely use an encrypted flashdrive with Android encryption and use it through an OTG cable. For example, the Pixel camera is great, but my storage is only 128 GB, which is very little for today's times. If I want to record something, I would save it directly to the encrypted flash drive. Or is it better to buy a flashdrive that is already encrypted from the factory with hardware encryption, like those Kingston Ironkeys with pin buttons implanted in the flashdrive itself.