Does a Lumin App for Windows 11 exist..?

Not all that strange.

Supporting MacOS after supporting iOS, is likely a fairly easy port (depending on specifics of their code). Shared code, same tools, same developers. On the other hand, supporting windows would require an entirely new app, likely sharing very little code, and requiring different developers.

Said another way, it was probably very cheap for them to support MacOS, and would be much more expensive to support windows.

Voice your requests to Lumin. It’s the only way to get it prioritized.

Referring to your similar post on audio shark, I think they were suggesting you might try their android app under the "Windows Subsystem for Android".

I'm not directly familiar with this, but a quick read seems to indicate it is an Android emulator that runs on windows. I think it's purpose is to allow windows based developers a way to test android apps directly on their PC.

As this is a developer tool, it's not really meant for consumers (read - it's probably pretty involved to set-up, use, diagnose). The online info on microsoft's website is also very fresh, not sure if it's even beyond a preview at this point. It might work. I personally doubt it'd be worth the effort.