As stated, I downloaded the .msi from the Download eM Client for Mac | eM Client site. Ran it under wine so I can get it installed on my linux box, but the version that installs is the Microsoft Store version, so I can’t enter my license code from my PC.
I see others have struggled with something similar here but have not seen a solution. I even tried the v9 msi with no luck (emclient-v10.1.4588.msi and emclient-v9.2.2280.msi).
At no point do I open the Microsoft store so I am not sure how it is installing that version.