If you sitll can boot into your daily driver (Drive 2 Partition2), use the following commands:
(Othrewise chroot into your daily driver):
sudo mv /etc/default/grub /etc/default/grub.old
sudo mv /etc/grub.d /etc/grub.d.old
sudo rm /boot/grub/grubenv
sudo grub-editenv /boot/grub/grubenv create
sudo pacman -S grub
sudo grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=EndeavourOS-new
sudo grub-mkconfig -o /boot/grub/grub.cfg
