Both devices have -90 degrees mounted panels but they don't have the quirk in kernel. The Pocket 4 has been researched and it has an acpi accel matrix that works when setting panel orientation at boot parameter. The Pocket 3 hasn't been tested, but given it didn't had panel orientation quirk is for sure that matrix is wrong for it. Actually is pending the quirks for both devices in kernel but eventually they will get merged. Till that happens is encourage that owners of these devices set panel orientation boot parameter to right-up. Fixes: #41036.
Files in this directory specify a description of hardware devices, in the form of mappings from modalias-like keys (which identify specific hardware devices) to udev properties. Files in this directory are not read by udev directly. Instead, man:systemd-hwdb(8) compiles them into a binary database. See man:hwdb(7) for an overview of the configuration file format, and man:systemd-udevd.service(8) for a description of the udev daemon. Use 'systemd-analyze cat-config udev/hwdb.d' to display the effective config.