Please just do me a very easy favour guys:
- Take a picture with your 8 Plus.
- Take the same picture again with any filter Apple provides
- Look at both pictures zoomed in. Filtered picture is considerably sharper
- Take a picture with your 8 Plus
- Load the picture into Snapseed on your phone
- Dont do anything with it, export it right away as a copy
- Compare both photos - the second one that you did nothing with except loading it into Snapseed (or any other application) is considerably sharper