Chosen Solution
Can you replace the camera glass?
Yes you can, the parts are easily available on eBay. Just search “iPhone 7 plus camera glass”. It will probibly be coming from China, so don’t remove the old one yet :)
Here tell you how to tear down iPhone plus https://www.etradesupply.com/blog/how-to…. Notice: you’d better tear down it with professional men, or you may do damage to the parts.