No Worries, I appreciate the work though!
Yeah saw the site go down and while I did wait a while to send another response I was just too tired to continue :D . I tried a few other things through Lutris. I had Wizardry 8 copied onto the pi (i had forgotten it was a windows not dos title) and it would give me the same error. I also had lutris log into my GoG account but it wouldn't download the titles I selected. I found you could download different wines through lutris so I grabbed version 5.4 and did get a different error message but ultimately nothing I tried worked.
They're getting closer to a fully optimized Pi 4 Windows for Arm build that has x86 emulation built in. Might have to wait until then.
As for Doom, yeah I figured that was the case as while browsing a few forums about it their was talk of the source code being available so that's why it was possible.