I can confirm grub2 from eoan-proposed fixes the issue and I'm able to boot both Windows and Linux on a system without SB and without shim.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845289 Title: Grub EFI amd64 no longer start EFI/Microsoft/Boot/bootmgfw.efi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1845289/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs