If only there was proper UI for these things. These days, even simple things like copy paste are being made harder and harder to discover, rather than have 1 standard way of doing it that works anywhere.
If people are able to figure out how to use youtube videos to achieve what they want, they for sure would be able to do things if only the options were actually there in UI's, but options are being left out more and more to make things "slick".
Regarding audio/video/brightness: this used to be super easy with analog volume dials, and screens with on/off button where your computer wouldn't (and shouldn't imho!) know that your monitor is off. I also really wish monitors with analog brightness adjust would make a return, these types of monitors don't exist for 20 years now, but I rarely adjust brightness on monitors due to the lack of that since brightness is usually deeply hidden in the menu now (somehow monitors with extremely bad quality built-in speakers that you'd never want to actually use, have easier shortcuts for audio volume than brightness)
Largely irrelevant, but that volume control works on connected devices as well. I plug my speakers into my monitor rather than directly into my computer so that the sound goes through the HDMI port. Much handier for my laptop, I only need to plug in one thing instead of 2.
If people are able to figure out how to use youtube videos to achieve what they want, they for sure would be able to do things if only the options were actually there in UI's, but options are being left out more and more to make things "slick".
Regarding audio/video/brightness: this used to be super easy with analog volume dials, and screens with on/off button where your computer wouldn't (and shouldn't imho!) know that your monitor is off. I also really wish monitors with analog brightness adjust would make a return, these types of monitors don't exist for 20 years now, but I rarely adjust brightness on monitors due to the lack of that since brightness is usually deeply hidden in the menu now (somehow monitors with extremely bad quality built-in speakers that you'd never want to actually use, have easier shortcuts for audio volume than brightness)