By accident yesterday, I said, "Alexa turn on the bedroom lights, dim to 50%." the words escaped my mouth before my brain caught up. But they came on full brightness and then two seconds performed the second tasking dimming, followed by just a single 'okay.'
I have always been able to say for example "Alexa lamp 50 percent" and the lamp would come on at 50%, not full brightness then dimmed but just dimmed from the moment powered on. Of course then followed by the obligatory okay. This dual command turns on, dims then said just one okay (twice would be annoying.) it's a start, hopeful more to come sooner rather than later.