Beyond red eye or white eye on close up shots using the flash i find the camera quality to be excellent. Its the app thats junk. Use a different camera app from the play store
I sold my Note 9 for the Pixel 3 XL just because the camera was just so frustrating. I exchanged my phone during that period and also duplicated the problems on my Wife's (different carrier too) Note 9. I battled blurry shots, washed out colors, view finder freezing up, camera app crashing.
The Note 9 is the most productive, feature rich phone I've ever used but I couldn't deal with the camera issues.