So my experience from it so far...not too bad but do notice phone transitions a bit laggy and phone heat up more often. Mainly use phone for youtube..and do hope they bring the dark mode or transparent to smart suggestions. Sometimes smart suggestions do give me a blank screen though
Do you know how to get to developer settings? If so there is a spot where you can click to make apps dark mode even if it's not available yet. I have used it on all my phones and currently too. I even use the setting where you can make your apps different sizes even if not available. Both forced dark mode and resizable apps.