I am using Ubuntu 20.04 and MIT-Scheme's procedure (enumerate-graphic-types) returns nothing. Even compiling the software from source with the flags --include-x11 and --with-x simply tells me that lib/*.com does not exist in my /usr/bin/install directory.
I am not sure how to compile/run scheme so I can use its graphical procedures.
This should work, supposing you compiled with the appropriate autotools flags.