The company is still burying its heads in the sand over why some XPS 15 9570 laptops are getting hot and experiencing high battery drain when asleep. The company has added having an outdated BIOS and drivers along with wake on Wi-Fi enabled to the reasons that could cause the behaviour but without recognising that forcing people to use Modern Standby could be the cause. Well done, Dell.
https://www.notebookcheck.net/Dell-doubles-down-on-justifying-XPS-15-9570-problems.423984.0.html