[NEED HELP !!] Routing Audio output through mic port

Hey, I'm new to bazzite. My PC's front audio line out port doesn't work it's broken, so I want to route that audio output through the front line in (mic) port, how to do that in bazzite ? Since it doesn't let hdajackretask to modify boot override (On other linux distros it works fine, maybe it doesn't work due to being immutable?).

Thank you.