My question is already out of the title. I flew only once and therefore do not know me so well, unfortunately find in the Internet only inaktuelle reports from 2017 or something. The man from the suitcase shop said that I have to do something like camera and laptop in my carry-on luggage, but I've already read several times a ban on traveling to the United States… Incidentally, I'm flying to New York with Singapore Airlines and from there on United Airlines.
Everything in hand luggage. Must be unpacked at the security checkpoint.
You will not have any problems with your laptop, camera and e-reader in your hand luggage if the total weight / free volume is not exceeded.
Valuables should be carried in hand luggage anyway.
So electronics, especially by the way power banks, belongs in the hand luggage.
There's or was a ban on the US for flights from the Arab world. But I think was lifted.