macOS and iOS also have Night Shift these days which is the same feature baked in.
iPhone's accessibility page for color filters looks like a clown car show of useless features. If anyone's found the magic configuration that makes that shitshow usable please share it.
1. You can set "reduce white point" to reduce white light 2. You can set a color tint filter and move the hue far to the left. That's the red/orange area. Set intensity to max. 3. You can set the accessibility shortcut to turn these on. (This one is lacking - it slows app switching on non-X devices)
I don't know how to assess actual colour spectrum output, mind you. Does this seem effective?
I leave night shift and true tone on as well.