not GP, but I use Xiaomi 2-gang switches, IKEA 5 button remotes, the old IKEA dimmers, and their on/off remote. At the moment I'm eyeing LIDLs remotes as well... In Denmark
Everything is controlled via Homeassistant+Deconz and a Phoscon Zigbee Dongle.
It's even possible to hack the IKEA switches into the danish wall switches.