yes, I added 2 symfonisks without problems.
I glanced the mentioned github issue. People mention brightness. I didn’t use simulated brightness, so it reports following states: rotate_right, rotate_left, play_pause, totate_stop, skip_forward, skip_backward and empty string
I’m not using HA automation. I’m using NR instead. Also I’m still I’m on HA 2021.1.5 (but recent zigbee2mqtt).
I presented my automation here: IKEA Symfonisk & ABB Tango