Firefox on Debian stable is so old that websites yell at you to upgrade to a newer browser. And last time I tried installing Debian testing (or was it debian unstable?), the installer shat itself trying to make the bootloader. After I got it to boot, apt refused to work because of a missing symlink to busybox. Why on earth do they even need busybox if the base install already comes with full gnu coreutils? I remember Debian as the distro that Just Wroks™, when did it all go so wrong? Is anyone else here having similar issues, or am I doing something wrong?
I stopped using flatpak when I found out both I had to update outside of the package manager. Also using flatpak gave me some issues with my sound card, so I just run the .deb. To each their own though, which is why I love Linux.
https://wiki.debian.org/DontBreakDebian
Installing outside packages is generally not a good idea. You can use Distrobox with a upstream distro like Fedora or you can use Debian Back ports.
https://backports.debian.org/
Had forgotten about backports. Need to get that set back up. Thank you for the reminder.