The traditional answer is that Debian is a bit slower-moving in both the Linux kernel and userland, so people who want current versions of popular software often find that they have to do some extra work in Debian.

A gradually increasing number of popular userland applications have been publishing their own apt repositories however so this is less of a problem now than it used to be.

Over the years though I've found that I much prefer Debian's relative stability and more thoughtful, if slightly plodding, release cadence.