HP ProBook 645 G3 — Synaptics touchpad enumerates as "PS/2 Generic Mouse" after sleep/boot, no gestures, phantom clicks

System details Laptop: HP ProBook 645 G3 OS: Ubuntu 26.04 LTS (Resolute Raccoon) Kernel: 7.0.0-22-generic BIOS: P82 Ver. 01.45 (latest available) Windowing system: Wayland (GNOME 50) Problem A...