First as I mentioned above you need to confirm there is not a reason that these apps were removed. If your IT department is fine with you installing them you can use the below to bypass the Windows Store app and install apps using their URL from the Store to prevent a complete "re-imaging" process of you laptop.
I have copied the URL for the apps you requested to be used with the guide below.
You can download Microsoft Apps using the guide below to generate Appx Packages and install those, bypassing the Windows Store. To do this you will need the URL for the apps you want.
3DViewer App: https://www.microsoft.com/store/productId/9NBLGGH42THS
Photos App: https://www.microsoft.com/store/productId/9WZDNCRFJBH4
Use these URL's along with the guide below to install Microsoft Apps without using the Windows Store.
Guide: https://lazyadmin.nl/it/install-microsoft-store-apps-without-store/
If this helped solve you issue please don't forget to accept this answer.
Thank you and have a great day!