Exactly this is the same issue i am facing from past 15 days i was thinking that i did something wrong to my phone waited for software update but no changes. I am working as a Dr the awkward moment for me was yesterday after OT were 1 Dr asked me to click pictures of Team as he was very excited by seeing s21 ultra in my hand i just opened the main camera and it was totally blur and his line were My IPHONE X click better pictures than yours, it broke my heart i am using Samsung since Samsung galaxy S4 this time Samsung has disappointed me a lot srsly planning to change the flagship and company both. More than 1200 Dollars wasted.
I've had multiple issues. Recently I've been trying to take pictures of snails and the auto focus isn't working properly. I'm assuming I need to cleam the lens but I don't want to scratch it up. So I'm waiting to buy a micro fiber kit just for the camera lenses.
@losangelesgraff If one had a DSLR you would stop down the lens to increase Depth Of Field (DOF) but the lenses on the S21 are fixed aperture. What I see in the straw photo is a desirable DOF for many shots. Try changing lenses since each has a different aperture and DOF and see if that achieves what you want.
The wider the aperture (lower the F number) the more shallow the Depth Of Field
Camera S21 Ultra
Rear - Wide 108MP(PD) OIS F1.8 83˚(24mm) 1/1.33” 0.8㎛
Rear - Tele1 10MP(3x, 2PD) OIS F2.4 35˚(72mm) 1/3.24” 1.22㎛
Rear - Tele2 10MP(10x, 2PD) OIS F4.9 10˚(240mm) 1/3.24” 1.22㎛
Galaxy S21 Ultra 512g(VZW), Galaxy Book (original, VZW), Tab S4, Galaxy Watch3 (VZW)