I haven't noticed anything grossly outdated. I have some Debian and some Ubuntu desktop machines, and honestly I couldn't tell the difference except when trying

I haven't noticed anything grossly outdated. I have some Debian and some Ubuntu desktop machines, and honestly I couldn't tell the difference except when trying to install stable diffusion (bleeding edge software with official support for Ubuntu only). I also used to run Debian on my server machines but switched to NixOS - although I'm now seriously considering switching back to Debian since it has far less headaches and just works.