Initially I went to do a dual boot install along side windows 10, the installer failed at the last step complaining "/boot/efi doesn't look like an efi partition" (this was the 500mb NTFS partition that had windows bootloader too).
I then tried to install again, deleting the Manjaro partition first (only had root, didn't make a /home or swap). This time however i formatted the boot partition to FAT32 (losing the windows mbr), once again with /boot/efi, boot and esp flags.
Now my laptop boots straight to Manjaro, I don't see a grub menu (tried changing some of the config settings, running update-grub, to no luck), and also the login greeter screen has a 4:3 display resolution until i log in (about 50% of the time).
I can mount the windows drive so its partition is still intact. Looking for advice on what to do, worst case (if possible) i would like to restore windows mbr and then i will just delete the linux partition.
other info: when creating the bootable usb i had MBR partition scheme and Bios or UEFI target settings.