I have NVME and SSD both on my PC. I installed and used Fedora on NVME, but I decided to switch to Ubuntu and installed it on SSD, leaving Fedora untouched. However, GRUB only sees SSD with Ubuntu now.
I used command
sudo apt install btrfs-progs -y
And now GParted sees /dev/nvme0n1p1 and /dev/nvme0n1p2 (where Fedora is installed), but that's not much help cause I can't see it in file manager, and also Boot Repair (which I used as LiveUSB) didn't help. Only GParted sees /dev/nvme0n1p2 but not Boot Repair or Ubuntu itself.
BootInfo Summary
https://paste.ubuntu.com/p/7kVQ3gP4rc/
And I need to use BOTH Fedora on nvme and Ubuntu on ssd