> the angles and positioning are supposed to be pretty good
This seems hard to imagine, your neck is still going to be strained by looking "down" on the screen all the time. If you have to work with a laptop and don't have access to an external screen at least put it up on a pile of books and use an external keyboard / mouse. That doesn't cost much and improves your posture so much.
Experience and my neck agrees with you. Sitting properly, my neck would has to be at about a 35° - 45° angle to see the screen at all. It's a guaranteed tension headache.
It is, but real experience tells me it can work well.
As I mentioned, having a proper setup with an external screen(or
your equivalent suggestion of propping up the laptop and using
external input devices) is better in comparison, but knowing how
to properly use a laptop if that's not possible is important as
well.
This seems hard to imagine, your neck is still going to be strained by looking "down" on the screen all the time. If you have to work with a laptop and don't have access to an external screen at least put it up on a pile of books and use an external keyboard / mouse. That doesn't cost much and improves your posture so much.