It's actually very easy to replace, the phone comes apart very easily for complete access from the inside to push out any glass. Clean the area very thoroughly so the adhesive can stick well.
https://www.amazon.com/Unifix-Replacement-F800L-H910-Toolkit/dp/B06Y3JGZM6/
I got this. Just heat with a hair dryer and use pliers to fish out cracked glass. Be careful not to scratch cameras. Not a big deal. Did it today in about 10 mins. It is glass and will splinter!
Its not too hard to flat out replace the camera glass without replacing the internal back panel... If the glass is already broken somewhere to start peeling after heating slightly with a blow dryer its like $20 for the glass ( has adhesive and even a nice angled tweezers and two other tools, I can't remember exactly how the OEM glass was but the color matches the back panel perfectly)
Grabbed one off Amazon myself, used the tweezers that came with it since my old glass shattered rather than fell. The dark gray matched the my titan us996 back cover perfectly.