Help using a USB GPS device

Hi there, I've just purchased a VK-162 GPS device form Aliexpress. It's a USB GPS device that I want to use with GNOME maps. I'm struggling to make it visible to the flatpak, unsure whether it's to expose the USB hardware, or systemd gpsd to the flatpak. Or whether it's flatpak xdg in Flatseal/KDE flatpak permissions. Help would be appreicated