While I have been speedrunning, I have noticed that certain F3 shortcuts do not work for me due to the fact that I have a 60% keyboard layout while being on Mac. This makes it impossible to execute the following F3 shortcuts that I want to use in my runs: Fn+F3+C, Fn+F3+G, Fn+F3+H, Fn+F3+F, Fn+F3+Shift+F. Does anybody know a legal way to remap these keys (hopefully specifically to only work in the Minecraft window) that works with Mac?

theres a mac setting to toggle it, google "mac fn lock"

I already tried this but it doesn't work because the root cause of the issue is the keyboard's shortcuts interfere with the shortcuts in minecraft.

https://karabiner-elements.pqrs.org/ you can rebind f3 if you don’t get it working