I recently bought a new HP laptop. WiFi and Bluetooth work out of the box in Windows 10, but not in Manjaro Linux 17. I am running Kernel 4.14 LTS.
To check which network controller is installed, I used the following command
lspci -knn | grep Net -A2
02:00.0 Network controller : Realtek Semiconductor Co., Ltd. RTL8723DE 802.11b/g/n PCIe Adapter [10ec:d723] DeviceName: WLAN Subsystem: Hewlett-Packard Company Device [103c:8319]