definitely a very unhealthy amount of time.
usually 7 hours straight in a day when i don't have to go anywhere.
and if you count look at a screen, oh boy... like the whole day??
When I'm not playing league, I'm on a forum and vice versa. When I'm out I just browse social media. So I rely a lot on the internet, I've met a lot of friends through LoL, YT, and fashion.
i only really sit down in front of my laptop for a couple hours a day at most, but since i always have my phone with me i usually go on it whenever i have down time during the day, so it probably adds up.