The banner in Paint 3D didn't reveal why Microsoft is discontinuing the app. But it's likely the usual reason -- not enough users to justify its existence.

Use MS Paint, Mac's Preview app, or an online conversion tool This article explains how to save WebP files to the JPG format, including using built-in Windows and Mac software and online ...

It might seem a little hard to believe but Microsoft's Paint app has been part and parcel of every version of Windows, making it almost four decades old. However, in 2017 with the Windows 10 ...