How to use zsh in flatpak vscode

Question

I have Visual Studio Code installed in flatpak, I run it with:

flatpak run --command=sh com.visualstudio.code

I want to change the shell to zsh, but I can't find how to, I tried multiple thing in my settings.json:

...
"terminal.integrated.shell.linux": "/usr/bin/flatpak-spawn",
"terminal.integrated.shellArgs.linux": ["--host", "run", "env", "TERM=xterm-256color", "zsh"],
...

And

"terminal.integrated.profiles.linux": {
    "bash": {
        "path": "/usr/bin/flatpak-spawn",
        "args": ["--host", "--env=TERM=xterm-256color", "zsh"]
    }
}

None works.