Microsoft has removed it from the Microsoft Store application of office Lens. Το program remains available on iOS and Android.
According to application support page, the company states that:
Important: Some cloud-based services in the Office Lens app for Windows, such as saving images to OneDrive, the OneNote, Word, PowerPoint, or PDF, will not be available after December 31, 2020. You may continue to use other features of the app as installed on your device. Additionally, as of January 1, 2021, Office Lens for Windows 10 will no longer be available for download from the Microsoft Store. To continue to enjoy all the features of Office Lens, we recommend that you download and use the latest version of Office Lens for iOS or Office Lens for Android on your mobile device.
Η Office Lens application is no longer available from the Microsoft Store for Windows 10. Microsoft released Office Lens for Windows Phone in 2014 and later introduced it to Android and iOS. This application can read texts from photos and save them as a pdf.
The desktop app was a holdover from Windows Phone development and no longer served unless your device was a mobile machine, such as phone or tablets. Like many other UWP apps. So it moves away from Windows 10 and remains available on iOS and Android.
As a mobile app it does a great job, especially on student texts with equations and strings, and we recommend you try it.