If the debian maintainers don't align with your preferences you can:
1. Create your own apt repository with newer software, and install from that. It's easy to package things, you can share the repository with trusted friends, running linux with friends is fun.
2. You can switch to a distro, like NixOS or Arch, which values up-to-date software more than slow stable updates.
Debian does seem to be more aligned with mailservers and such, where updates can be slow and thoughtful, not as much with personal ai development boxes where you want the hot new ai tool of the week available asap.
... Either way, learning to package software correctly for your distro of choice is a good idea, it's fun to bang out a nix expression or debian package when you need to install something that's not available yet.
And installing a .deb package is equivalent to executing arbitrary code as root so I'm not sure what this actually buys you in security terms.
I would love for folks to start packaging their software for major distros if for no other reason than to see just how annoying the tooling is to use.