The was a USB cable provided with the FZ? I cannot remember the cable that came with it but i usually use the one that came with my phone cause it is in reach most of the time. I do notice a lot of cables not being to fond of usb3 connections, , so far my favorite cable is the short white one that comes with the proxygrind tiny pro, usb c-c and plus a adapter to A classic, so cable length for fast transfers and less connectivity issues does seem to help but i cannot recall the included cable was conflicting with anything. I do have some older pc’s with early usb3 implementations that are very picky about cables, so maybe it is a combination of client/other devices.
So the c-to-c connections with like only a short cable in-between seems the most likeable, also for transferring data from phone2phone for example. Short usb c-to-c only cables do seem to perform a lot better and faster then cables being 1-2 feet long.
But the ones i use a lot from my phone also work fine for the flipper i have never noticed any cable issues, just from one to another phone, transferring a ton of data (200gb) the short ones actually make a diffrence and save you 15 minutes.