Yes, you can.
I have to say that I’m not sure if it will help us, as I said earlier we can go straight to trying to make it work (when you’re on-site). Still it’s interesting to try to understand some more details, at least for me.
I would ask you to post output of
sudo tree -Das /boot/efi
to look at file sizes / modification times. I can compare them to mine to see if your grub files were upgraded or not.
Also it may be useful/informative to see the same from sda1 as you did here:
but with additional info (timestamps / sizes):
sudo tree -Das /mnt/sda1/EFI/EFI
sudo tree -Das /mnt/sda1/EFI/fedora
sudo cat /mnt/sda1/EFI/fedora/grub.cfg
By the way, as far as I know you can use fpaste for it: