Have you tried clearing the Camera app's cache and data? I'm guessing the blurriness is due to your AF not focusing correctly?
We are sorry to hear about your experience with the recent updates on your Samsung Galaxy phone having issue with the camera blurred photo, and we apologize for the inconvenience it caused you.
Having similar mindset of expecting my device to perform better after an update, but turns out different instead, then I will be bothered too. But don't you worry; we are here to guide, assist, and offer solutions to restore your device to optimum performance.
If that doesn't fix the problem, you may submit an error report through Samsung Members app as follows:
Step 1. Long press Samsung Members icon on Apps screen and tap Error reports.
Step 2. Tap OK on agreement popup to send system log data.
Step 3. Select Symptom category "Camera".
Step 4. Describe the problem in details and SEND.
How to submit an error report on Samsung Members app? | Samsung PH
If the problem persists, immediately bring your device to the nearest Samsung Authorized Service Center. Rest assured that our Samsung engineers and technicians are competent to assess your device with suggestions, and offer to provide prompt solutions to restore it up to optimum performance.
For more assistance and guidance, you may contact us via our online Samsung Customer Care support channels below.