That’s great to hear we are very grateful for your patience and understanding.
The current build (which is self-contained, I won’t go into the details but will say that self-contained builds should not ask for a dotnet installation) I am able to install on a PC that has absolutely no .NET (core or otherwise) installed.
A separate test machine however I have gotten into the same state YOUR computer is in.
That is: I am unable to install properly and get the error message. I will post more details shortly.