How do I select a different boot option using UEFI??

[Qqmike]

Ah, yes, I see. I did my UEFI testing without any Windows, and no Neon. I used 2 HDDs, 9 or more OSs including several ubuntu derivatives, and 3 ESPs -- no problems at all (After, of course, I got it all figured out). Those were the days, about 5 yrs ago. Now? On my DIY ASUS UEFI mobo PC, 1 HDD, 1 OS (K 20.04)! Simple.

[mr_raider]

Ah, yes, I see. I did my UEFI testing without any Windows, and no Neon. I used 2 HDDs, 9 or more OSs including several ubuntu derivatives, and 3 ESPs -- no problems at all (After, of course, I got it all figured out). Those were the days, about 5 yrs ago. Now? On my DIY ASUS UEFI mobo PC, 1 HDD, 1 OS (K 20.04)! Simple.

Where does manjaro put it's loader?

[Qqmike]

Where does manjaro put it's loader?

According to https://www.wiki.manjaro.org/index.p...Install_Guide:

/boot/efi/EFI/Manjaro/grubx64.efi

(That reference, btw, looks excellent, covers everything imaginable, even rEFInd.)
And notes:
If you do not have this file or folder, try-

sudo grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=Manjaro --recheck