I really want that to be implemented but it seems HASS was really never considered and now it is a gargantuan effort to implement it.

but I hope they do it, even if it takes them long to get there.

from the month of WTH announce post:

Tell us what makes Home Assistant hard, confusing, or annoying for you…

we know many of these things can be done. the point is that they are annoying or hard to do

this one. https://www.daikin.eu/en_us/products/product.html/ekhhe-cv37.html

I have a daikin aire source water heat pump . it does not have any “smart”. it has a wire you plug into a dry contact to start it. so i plugged it to a shelly 1 and use a smart plug to monitor its energy usage

I cannot fine tune its temperature just start-stop it, but works well enough.

the European toyota integration is quite ok.

IMHO color temperature, dimming or color are the best thing of smart bulbs