The lenses are sapphire coated and pretty difficult to scratch. I wipe mine with a the tail of my cotton T-Short all of the time and it’s fine. You’re not going to scratch it so I wouldn’t worry about it. That being said it doesn’t hurt to get an inexpensive micro fiber cloth or even some inexpensive lense wipes for occasional cleaning. The front screen is softer glass and will pick up small scratches so use a screen protector or at least lenses cleaning wipes or microfiber.

That’s not a moon.

That’s a space station.

Nope. I don’t sleep with it on. Sometimes I don’t even wear it on weekends or vacation.

No. It’s just convenient access to information without pulling one the phone.

Verizon’s call filter blocks anything that is suspected spam (if you set it so.) There is also a setting “Silence junk callers” that specifically silences “spam likely” (even without call filter.) I very rarely get a call that rings through. Check to see if your carrier has a spam blocking app.

Almost every Apple product I’ve ever bought was repaired or replaced under warranty the first year. Oddly my latest purchases have not so far. The 14 Pro is going on year 2 OK my several years old iPad Air 4 is still fine and so is my watch Ultra so far.