That’s just the first GRUB menu. Select run mode, press Enter and then immediately press Esc again to get to the second menu and select “Fallback on failed update”:
I hope the comment is still readable enough.
I have just tested this on my own tinker toy VM, which pretty much mirrors your setup, I believe. It still booted the 7.0.0-22 kernel, though. I don’t quite know why, because:
$ snap list --all pc-kernel
Name Version Rev Tracking Publisher Notes
pc-kernel 7.0.0-14.14 3390 26.04/stable canonical✓ kernel,disabled
pc-kernel 7.0.0-22.22 3492 26.04/stable canonical✓ kernel
Perhaps because it’s disabled? But I’d have thought that’s the normal status of previous (fallback) versions of Snaps. Maybe GRUB/<boot magic> doesn’t believe me that the update failed, because there is no actual error to recover from?