https://bugs.winehq.org/show_bug.cgi?id=54952
--- Comment #11 from jakubkwadrans15@gmail.com --- (In reply to Louis Lenders from comment #10)
(In reply to jakubkwadrans15 from comment #9)
Created attachment 74480 [details] Error with wine 8.8(staging)
Well, I don't get that error and it might really come from mixing running wine as root and as regular user(!)
My advise would be to start completely from scratch running wine as a regular user only (so create new prefix and also redownload installer in a different location and start allover again)
After creating a new prefix, installing .NET, and running the hacked installer, the issue still persists.