I'm looking to disable my MacBook Pro (2016)'s internal keyboard. I'm running macOS Monterey 12.6.3. My left shift key is broken and always pressed, and while I have a Bluetooth keyboard that helps when I'm typing, other computer functionality acts as if the shift key is pressed (e.g. opening new pages creates new windows, clicking text highlights sections, etc.).
I have tried every solution I've come across: I took the keycap off and cleaned the key; I used a keyboard cleaner software to lock up my keyboard; I used Karabiner-Elements to disable my built-in while my external keyboard was active; I ran a keyboard-disabling kext in Terminal. None of these things have worked for even a second.
I can't help but feel that maybe because these solutions are all a few years old, they're out of date and no longer work on Apple's OS, so if anyone has any other solutions I could try, please let me know! I'm also not ruling out that I've messed up somewhere in trying these solutions, but I've tried so many different things, I'd think one would work.