Hi all,
Not sure if this is the right place to ask this but here goes nothing. I just installed manjaro to my HP laptop alongside windows 10. I’ve tried changing the boot order using both bcdedit and efibootmgr yet to no avail. I was wondering if there were any other methods to try and get my laptop to boot up and recognise manjaro first before windows? thanks in advance 
so open this file lecated here:
sudo nano /etc/default/grub
and edit this line to look like this:
GRUB_TIMEOUT_STYLE=menu
(its the third line from top)
save the file with ctrl+x, update grub:
sudo update-grub
reboot, and the grub menu will be shown, and in there you boot with manjaro
While @brahma’s advice will unhide and make the grub menu visible on boot, I suspect you’ll find this handy as well:
https://wiki.archlinux.org/title/GRUB
Hope it helps!