What they can do is block certain light that overlaps in some of your rods and cones (colorblind) in your eyes allowing you to distinguish between colors you previously could not.
Not magic. Just pyshics. They do not fix the issue but it gives your brain new information that was previously obscured. Then your brain can use this info to distinguish between the two overlapping wavelengths that you previously could not.
I had to double back to your comment because at first I glances at it and thought yeah... Then I thought about it some more and thought .... Yes! That is exactly how they work. Papers plus or minus but that is the way they work. We all agree upon it and bam. You are now named!
I hate that when I click on the Settings for a Notification I do not get any information on the category of the notification.
You have to go into 3 settings to get to your notification history and there it shows the category.
Bad phone!!!
I see all of these actions by the government to address and reverse the population decline but they seem so insignificant and half assed.
This is a very serious issue for a society and it has the potential to get worse in a geometric decline fashion, making it very time sensitive.
Actions that may help today will be useless on the near future... I think governments are not giving this issue the seriousness it deserves and are acting way too slow. By the time they realize this it may too late. They may be obligated to do some very uncomfortable containment actions.
My Samsung phone does have that feature in the My Files app that comes pre installed. I don't use it because File Manager+ is so much better. And I have access to my SFTP, LAN and NAS. I am not associated with the app. Just enjoy it and recommend it because I find it very useful.
In my country we mostly use WhatsApp and it has a specific option in the menus that says 'in chat notification sound' which does exactly what you are looking for.
What I would suggest is try another messaging app that is more feature rich such as textra. I bet they do a better job at handling notifications than the default app.
I just built a laptop and I always choose Mint. I used the XFCE spin and it failed me. Everything worked well except the second monitor screen. I just could not get it to display proper 1080p. I tried forums and changed a bunch of configurations.
I ended up getting Fedora on it and it worked out of the box. Oh well. Fedora it is then.
Weird list...