Earlier quoted context omitted.
Actually a bed mode will make a substantial difference. Looking at phones or laptops or whatever screens at nighttime suppresses melatonin, which leads to people not feeling sleepy when they should, which makes them much more likely to continue looking at their screen than if they became as tired as normal. It’s certainly possible to stay up doing something without blue light (e.g. reading by candlelight or a dim inc…
In my experience, using a screen colour app just encourages me to use my phone more not less. Even with these apps a phone will still emit a large amount of blue light and having the light source so close to my face I still notice it disrupts my sleep. If you believe using your phone late at night is harmful to you at all then why continue to maintain a that behaviour? Wouldn't it be much more beneficial to your heal…
Paraphrasing from one of your previous posts, "if you really have to question every action that might be harmful then you would never go outside, put anything in your mouth, go to the bathroom etc. Your question really only makes sense when considering activities that have a relatively high risk of harm in which case the answer has to come down to two things. Firstly how harmful is this activity? And secondly, how much harm am I willing to take?"
If a bed mode is enough to make the disruption to one's sleep negligible, why not use the phone late at night?