Using a Neuhaus Q Etienne Hue Lamp. Work around required or HA bug?

After 30 years of service most of my B&O dimmers and RCs are broken, so I ordered some Hue devices/bridge but cancelled the order because Signify wanted me to join their cloud. Then I found HA working, ordered HW and am quite happy.

But I have no other HUE device rather than this cheap Q Etienne which comes with an IR RC. Now about this thing or HUE specific behavior: Is it a bug or a feature? Please do not tell me how happy you are with MQxxx, I strictly use ZHA / HA core 2024-1-6 on RPI-3/64bit 2MB debian bullseye and that’s all:

Service:
light.neuhaus_lighting_group_nlg_tw_light_licht

BUG or HUE Feature:

(1) my other device change state from off to on when I set the dimmer percentage. HA built-in automations seem to rely on this.

(2) Q Etienne does not go on, needs 1st to be turned on explicitly, then you can set the dimmer value:

  - type: turn_on
    device_id: 76ea5104d27dce3bb5edcc84935118bb
    entity_id: 9e1bc3321e75a71afb699006eeac22e3
    domain: light
  - type: turn_on
    device_id: 76ea5104d27dce3bb5edcc84935118bb
    entity_id: 9e1bc3321e75a71afb699006eeac22e3
    domain: light
    brightness_pct: 50

So the device works, but not with the HA built-in automations. I always need to run a little wrapper script/service to make it work which is inconvenient.

Any Idea?