I hit a kernel panic after the upgrade.
The fix was easy enough for me to find and correct, out of space in the efi part due to windows dual boot stuff in there too. I removed the old kernel rebuilt and I was good.
I wo der how many people hit that and were stumped.
My 2 concerns to date are
1 just a bad file manager. Its dumbed down for people and I hate it.
2 lack of support for veracrypt volumes.


How big is your EFI partition?
The default from 22.04, 457 iirc. The new kernel needed just 10 for mb to build without error.
Ah yeah 24.04 upps that to minimum 1gb