I run lights all the time too, doesn't matter if its bright sunny 100 degree day or a typical cloudy Seattle freezing day. I actually have lights on the bike and a 2 in 1 light on helmet. Always be safe and do everything to be seen on the road.
As for those Zniino gravel handlebars, they have won me over. The clever design is really...clever. I mounted brake levers on those extensions and shifter is on the drops. Every control just fell right into place and felt natural. Did about 100 miles altogether and I am liking them a lot. I like the fact that in future I can swap my Deore groupset with a GRX without changing the bars.