I have installed EDK on Linux 64-bit and both 32-bit and 64-bit settings files were created. However, sourcing the 32-bit settings files doesn't seem to work.
In 10.1, even though both sets of settings files are created, only the settings64.sh and settings64.csh are functional. EDK does not deliver 32-bit applications with its 64-bit installer as ISE does. You can safely remove the following 2 files from your EDK install: