What a mess this is.
Tuya is a great way to add cheap smart device, even knowing that someone in China might be looking at my preferences. Integration in HA was working perfect for ages, with minimal configuration, even in the old days where many other things were difiicult.
Now it seems impossible for me to simply add my non-zigbee lamps and switches.
Not good for the WAF at all.
Finally fixed my issues by using the old integration:
GitHub - andrey-yantsen/home-assistant-tuya-old
Thanks andrey-yantsen for saving and posting this!