Comment # 2 on bug 110137 from grmat@sub.red

Neither qutebrowser nor QtWebEngineProcess worked. Now I've seen that qtbrowser
is built on PyQt5, so the executable name has to be "python3", this works:

<application name="qutebrowser" executable="python3">
    <option name="adaptive_sync" value="false" />
</application>

I'd send in a patch for that, but I think this will block any python3-based
app, which is not the goal here.