What happened to Microsoft Math Solver for Desktop?

Microsoft Math Solver for Desktop seemed to be a great iteration of the Microsoft Mathematics 4.0 product that once came with Microsoft Student. As a PWA, it showcased Microsoft's commitment to pioneering a new category of apps. However, I noticed recently that the "Download Microsoft Math Solver for Desktop" option ahs been removed from the download page (see https://mathsolver.microsoft.com/en/download). Is there any reason why this has been removed, and is there any other way to get Microsoft Math Solver as an offline desktop application? What does this mean for the future of Microsoft's efforts in the PWA space?