I have been using Manjaro with no problem but after installing EndeavourOS on my laptop, Wifi and Bluetooth stopped working.
I have DW1820a wifi card which uses Broadcom chip
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Is it DELL XPS 13 used with DELL USB-C dock, by chance?
I asked, because:
Note: The Broadcom
brcmfmackernel module causes issues with Dell USB-C docks. Notably, the USB ports and ethernet connection will stop working when there are WiFi connection issues.
https://wiki.archlinux.org/index.php/Dell_XPS_13_(9350)#Broadcom_Wifi
P.S. Oh, and welcome! 
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For wifi, try uninstalling r8168:
sudo pacman -R r8168
For bluetooth, you have to install it. See:
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Welcome aboard!
sudo pacman -S --needed bluez bluez-utils
sudo systemctl start bluetooth --> bt is on till next reboot
sudo systemctl enable --now bluetooth —> bt will be on per default on every boot
xfce4 --> sudo pacman -S blueberry or sudo pacman -S blueman to have a config gui available
GNOME and KDE will have a bt-gui included
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Welcome to the community 
Thank you for your reply,
No, I’m using my HP Omen laptop with no USB-C dock
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Thank you for your reply,
Bluetooth is now working
Just needed to enable it using systemctl
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Thank you for your reply,
still no wifi
give us boot journal to show what is going nurts:
https://endeavouros.com/docs/forum/how-to-include-systemlogs-in-your-post/
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