Nope. Don’t notice anything

Maybe if the photo “matters” but generally no.

Bonus that iOS detects that and tells you to wipe your lens if you’re trying to take a photo with a filthy phone.

Yes, I do. You’re not the only crazy person. If I don’t wipe it, it looks blurred, smudged, or get that weird effect where it looks like I have astigmatism.

I don’t clean the lens every time, only if I notice that it’s dirty through the onscreen preview.

I wipe it off if the picture is out of focus

No. I don’t normally do things to get my camera dirty in the first place. Plus the inside of my pocket seems to do a good job at keeping it clean.

Can’t get dirty if there’s already tape over it.

And I put eye drops in.

I don’t. I feel like every time I slide it into my pocket and pull it out, the lens gets a quick wipe. I also wipe down my phone with a little dab of isopropyl alcohol when I get home, so it kinda keeps it from getting filthy buildups.

I carry a glasses cloth with me 24/7 for my glasses but, also using it on my camera lenses if I’m photographing anything mildly important

I don’t think I’ve ever wiped my phone camera lenses.

The case I use has a lip around the camera module that keeps it recessed, so they never really touch anything. Looking at them now, they’re perfectly clean.

You made look. Maybe I should wipe it.

AbsoLUTEly !!
Indeed, I make sure to balance the situation by watching a Wong Kar-wai film, 王家衛電影, as expected, each time!

Ah, 哈哈，我最喜歡他玩抹布和肥皂碟的那段！❤️

I have never cleaned my phone’s camera.

I shutdown my phone each morning (best way to remove malware or viruses). This is when I clean it with an alcohol wipe, including the camera lens. Once in a while I take it out of its case to clean out the dirt.