How do you rebind the media key?

I dislike how if I ever accidentally press the key located at ‘Fn+F12’ that it immediately opens the default video-player, regardless of what you’re doing or what you try to configure it to do. Is there any way to rebind it, or at least disable it?

I’m using GNOME, if that helps. Specifically, a variant of SIlverblue called Bluefin OS.

I’ve tried using the Custom Keybindings in the Settings app. I’ve tried using an app called Input Remapper. I’m unsure what else I’m even capable of trying. I found an app called solaar, which was installed by default by my OS, and seems to have some preconfigured settings for the keyboard. Unfortunately, I can’t seem to get it working, though that might just be my inexperience.

Does anyone else have this problem? Is there a way to fix it?

Thank you for the help.