No need to rush into PureOS reflash process (as phone received in January 2023), yet once there you’ll note how strong Purism support@ actually is. At first place functioning sudo apt upgrade will do what necessary there.
Besides, functioning uuu -lsusb command (after Librem 5 connected to, over USB cable, to your host computer) is good starting point (it is mandatory connection check, up to how I define this approach): Librem 5 flashing process fail (LED turn green - #19 by Quarnero even before any up front reinstall of PureOS. In addition to functioning uuu -lsusb before reflash process requires, over related script, stable Internet connection. Having Librem 5 battery at over 80%, before PureOS reinstall process started, will help too.
P.S. If on your Librem 5 screen still initial screen protection plastic glued above it, please remove it away.