If you go to this URL:
http://www.codeblocks.org/downloads/binaries/ which is the official download URL of the IDE you will see a list of available binaries.
If you download
codeblocks-20.03mingw-32bit-setup.exe and then install it a very interesting thing happens. Immediately after opening the IDE you will be faced with this error message:

When going to the compiler settings section you can easily see what the problem is. Here's the executable file names CodeBlocks is looking for:

And here are the actual executables that are shipped with the official 32-bit release of the program:

Can you see the problem?
The executables that the IDE is looking for do not exist. There is no such thing as
mingw32-gcc.exe or others.
I don't know which ancient version of GCC used these names.
But it's fascinating that not even a single person from the developer team has taken the time to actually install their own official 32-bit release to immediately find out and fix this problem.