I am only really familiar with Arch and OpenSUSE, so I don't know how other distros do it, but OpenSUSE keeps the (I believe) latest 5 kernels, so I just have to delete snapshots older than the oldest kernel in my /boot. I like that system so I do the same thing on Arch (but don't tell anyone, otherwise I'm gonna get yelled at).
Doesn't deleting old kernels defeat snapshots? You do a system update, you get a new kernel, you delete the old ones, now all snapshots that depend on that older kernel are busted, what am I missing?
You may have misread, what I do is I keep the 5 latest versions of the kernel the distro ships and I delete snapshots which depend on kernels older than those 5. I could keep all the kernels and snapshots, but I don't have that much storage dedicated to / and /boot.
