I just installed EOS XFCE on a new partition (sda5). I noticed on the grub boot menu it had a duplicate entry of my EOS gnome partition
I thought no problem, I’ll just set the gnome bootloader to load first, then reinstall grub so it adds the XFCE parttion to the list. I’ve done this many times in the past with no problems. I’ve also installed EOS many times on various partitions without ever getting duplicate grub entries