I kept getting an error message when I run the garuda-update script, telling me that files on /boot are invalid, so I posted a request for help to fix the issue on the support part of the Garuda forum. I received this link if anyone’s interested! It just goes to show that I should have searched the Garuda Wiki before asking for help! I’ll know to do so in the future …
UPDATE!
I’ve found that for the Garuda technique to work correctly, I must use the Garuda Grub boot loader. I can live with that for now, but I’ll be looking for a way to make rEFInd and Garuda get along with secure boot support enabled now …
Ernie