I have GCC installed and require the ability to use some libraries that are only supported in C++20 for now. In the project build settings in Xcode, how do I use the GCC compiler instead of the libc++ compiler used by default? This question appears to have been asked earlier last year however has not been answered.

Hello! I've been trying to select a custom font to use for my label, but when I import it correctly, it doesn't show up in the fonts available for selection (See images below.) I've tried closing/reopening Xcode and cleaning and rebuilding the project. Nothing I've tried has worked so far. Thank you!