Laundry room with gas and/or dryer.
(brighten up outlet pic - Harper)
You are in luck. Yes, you can install either. The electric outlet is 4-wire, 2 hots, a neutral and a ground. It's always a good idea to verify it's wired correctly. A gas dryer will also require a 120V outlet.
I would say it looks like it is set up for a gas dryer. A few quick questions- where is the vent for gas fumes (some pilot free don’t need them) but they need make up air to exhaust. I would put a cap on that fitting just in case a cap is cheep insurance until hooked up.
Yes.
If you do not want/use the gas(check what kind) probably will want a dust cap on the valve.
If not wanting the 240 volt plug, should turn off the breaker for it.
I would have prefer to have a red handle on the hot water faucet, but I might be getting too picky.
Some places are trying stop new gas hookups, but since it is already there, should/might be okay.