There was a set of updates that was pushed to my i5 8/256 on Thanksgiving morning, which included a firmware update. I haven't seen much written about it, and it didn't fix any problems I was having. But it seems to have really improved my battery life. Over the 1.5 weeks before that I was averaging 5:25 hours according to powercfg /batteryreport, but since Thanksgiving I've averaging about 6:40. Yesterday's update doesn't seem to have had any more effect on battery life when in use, but might have improved standby life. I will have to give that a good test as I have not been using standby much.
Yesterday's update did fix the frequent video driver crashes I was having in Edge. Much better now. Also, I was having a problem that the pen would sometimes stop working for a few seconds, as if the pen driver were crashing and recovering (but no message about it). That is fixed now, too. YouTube is working fine for me.