How to switch from Grub to rEFInd without breaking everything

Okay so a little backstory: I've been trying to install Linux as a dual boot (with Windows) since yesterday, here's how it went down : - installed Debian, worked well but I had to boot in nomodeset for some reason and it hardblocked me in 4:3 resolution - a friend told me Debian was a weird distro choice so I mehed and tried to install MX instead : I still had the nomodeset problem, but it also killed my grub (weird normal error preventing grub from launching) - since the distro had the same problem, I tried with a third one (EndeavourOS) which (yay) didn't have the nomodeset problem. However, the Grub was still broken, so impossible to launch on-disk. I tried fixing the Grub for a few hours, gave up and decided to instead switch to rEFInd. I installed it with pacman, ran the refind-install (got an warning saying I wasn't in EFI mod, which was normal I guess since I was working from my USB boot) and I also had to rename a file to match my AMD gear. BUT when I restarted, I still fell on the grub error page. So I relaunched from the USB, removed Grub with pacman, and deleted everything with "grub" in the name on my EFI partition (there was a grub folder I wiped from /boot/, and also some grubx64 files in /efi/). I thought that would force switch to rEFInd but instead it just broke the launch totally, and now the only option I have in the BIOS is Windows. I'm still rather new with Linux so please detail your solution a little. What I know how to do is : - Launch Endeavour from my USB and mount the installed one there - Use pacman to install packages - basic file management -------------- EDIT: Just completely wiped my hard drive and reinstalled Windows then Linux. I still get the exact same grub error : error: verification requested but nobody cares: (hd0, gpt5) /boot/grub/x86_64-efi/normal.mod