I have Debian stable and I have found some weird bug which was already fix.

The fix were merged into the stable branch which version was gnome-settings-daemon 3.32.1 but I have gnome-settings-daemon 3.30.2-3 So, how can I use the patch without breaking my system? I have to install from where? Backports?

I check versions with apt but I don't see any useful here:

/home/user-> apt-cache policy gnome-settings-daemon
gnome-settings-daemon:
  Installed: 3.30.2-3
  Candidate: 3.30.2-3
  Version table:
 *** 3.30.2-3 500
        500 http://deb.debian.org/debian buster/main amd64 Packages
        100 /var/lib/dpkg/status

Thanks in advance!