@lemmy.zip how do you install handbrake 1.11.2 avoiding flatpak ?

On Debian-based systems one has two options:

a) Install from Debian testing:

• add testing repo
• pin all packages from Testing, except handbrake*, with negative priority
• and hope installing works without having conflicting dependencies.

b) Build from source:

• Activate the deb-src repos in the sources,
• install build tools: sudo apt install build-essential dpkg-dev
• install the build dependencies of handbrake: sudo apt-get build-dep handbrake,
• download the source archive from their website (or from Debian testing),
• follow their build instructions,
• recommended: build a deb package and install. (see Advice For New Users On Not Breaking Their Debian System and CheckInstall for more advice)

You need to give more details if you want people to help you.

What's wrong with flatpak? Outside of a few limitations, flatpak generally makes things easier