Debian's stability doesn't mean "rock solid, no crashes." It means "non-changing, you don't have to worry about configs suddenly being incompatible."
There have been plenty of situations where I've found that Debian won't update a package. They backport "security" fixes. But only on certain packages.
If a package that is not on the Debian maintenance radar, or the bug isn't "serious" enough to be "security" related, that bug will be in Debian for years. And the end result is needing to compile your own.
If for your workflow, it is a critical package, then Debian becomes more prone to crashes than other distros, and you could argue it's less stable.
I still use it for my server, which is just dockerized everything anyway (using the docker repos, because Debian's docker is excessively out of date), but neovim is on version 0.7.2 (even in sid, you have to go to experimental to get to 0.9.5, which is the current). If there are bugfixes between 0.7.2 and 0.9.5 beyond "security" ... you don't get them. And you won't even get them in the next version. Which means if you need any 0.8 features/bugfixes, you won't get them for years.