LED? He should be more worried about LEAD. He's clearly consumed more than one should.
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Is your friend RFK?
Other comments are correctly stating that the sun is white, but appears yellow/orange due to the blue light being scattered—but that doesn’t fully address the issue, because objects seen under a white light with an orange filter in front would still have an orange cast.
The difference with the sun is that the scattered blue light is still reaching objects via the light from the rest of the sky—it’s the orange light from the sun combining with the blue light from the sky that makes things appear white.
I'm old. This is the same sun we always had. The sun did not change color. Your friend is delusional.
30 years ago?
So right about the time The Truman Show came out?
Did your friend perhaps watch it while high?
The sun is yellow. Being orange wouldn't drastically change the color of everything we see. Pure sunlight is like 4300K in color temeprature, pure white is about 5000K, but clear sky daylight, the actual summation of light, is more like 6500K. This is because rayleigh scattering in the atmosphere shines blue light towards us across the whole sky. You're seeing bright blue sky, the bright blue sky is shining on your daily life. This is why cloudy days are gray. The clouds are blocking enough of the blue to create a more neutral pure white.
The sun is tinted as hell in smog, though. I got a taste of classic Los Angeles in recent Indian winter.
No, the sun's real colour image is white, but due to our nitrogen-oxygen and ozone layer atmosphere filtering certain light, it comes out blue, iirc. It also depends on the angle; if the angle is low, more light will be filtered and therefore yellow, orange, and red light will pop up more.
As for the friend, he's a first grade idiot and conspiracy fool. He needs to take physics.
The sun is a G-class star. It's yellow or yellow-white by classification. The order from blue to red is OBAFGKM, with white being an A leaning towards an F. The perceived earthbound color of Sol skews further yellow because of the aforentioned blue-scattering.
You just gave me elite dangerous PTSD flask backs...
Well... That's the particular reason I'm keyed into it. I haven't actually ventured far enough to actually need the KGBFOAM mnemonic. However, I am currently docked on the Distant Worlds 3 carrier. DW3 just launched on the 18th. I believe it's near Colonia right now, at the planet of death, where the land able planet is in a jet cone.
Where the peak is depends on how you measure it. Wavelength or frequency gives different curves. If measures as a perfect blackbody the peak is green (which is connected to why chlorophyll took off, even though it's less efficient for energy capture). But we get all visible light to some degree, so its color is white. Classification has a different meaning than what it looks like.
I've been on this rock for more than 30 years. I can assure you we've never had orange clouds. I will say sunrise and sunset do some wild things and you see some really cool colors.
I've seen the sun orange and even red from smoke and pollution.
You cannot reason someone out of a position they did not reason themselves into.
Y'all need to stay in school and take physics.
I mean there's like pictures of the sun out there... how old is this person?
I don't think your friend has ever been within 2500 miles of the equator if he thinks the sun is orange. Go south enough and the idea of a yellow sun even seems dumb.
He must be fucking with you if he says the sun got replaced by an LED. Forget about the color stuff, ask him how the sun got replaced.
You can't fix stupid, it will only drag you down with it.

Who cares if it's orange, white, blue, or whatever, or whether it's an LED or not? It wouldn't really make any difference if you knew. The whole question is pointless IMHO.
Things in atmosphere can color the light, but most likely they're thinking about incandescent lighting on TV and at night.