Parallels 16 free trial no longer running 32 bit applications

I have just activated the Parallels 16, 14 day free trial as I found that when I was running 15 the CPU usage was 100% and causing my MacBook to overheat / have a really noisy fan.

However the reason I have Parallels to start with was so that I could continue to play 32 bit applications via Steam - however when I try and run the application, Im just getting an error message from Steam saying "32-bit applications are no longer supported in macOS 10.15"

I'm not sure what's going on as it worked fine on Parallels 15, and this has only started happening on the free-trial for 16.

Any suggestions?