My kernel version is ‘6.8.0-87-generic’ and hers is ‘6.14.00-33-generic’. My brother, who uses CachyOS, has kernel version ‘6.17.1-2-cachyos’. So it makes a little sense that the kernel is different. Even though I always thought that there was just one kernel that all Linux versions use.
But why is there a different kernel for the same distro?
I don’t know if they still do it, but Mint used to do staggered updates (through their update manager) for some packages. They would start out making the update only available for, say, 10% of people and then slowly built up to 100% if no issues were discovered.
This also relieves download pressure on their servers