I think it also might be USA centric

I would also like to know this. I've gotten rid of my streaming services and social media (minus the fediverse), but I don't see how people spend more time on Facebook than on Netflix. I have wasted entire weekends binge watching TV.

If I open a tab for gmail and leave it for 24 hours, is that 24 hours worth of 'activity'?

Well then they'd be a massive block being "Genitals"

I feel like there are natural, err, limits to how long one can spend on those sites, surely?

volunteered to do the paper forms for highschool signups at the start of the year last year. Nearly 100% of the kids had a Gmail address but the parents had around ~60% Gmail ~30% Hotmail and ~10% yahoo.

as I expected, undisclosed USA centric study

Old people set their homepage and never looked back.

Unfortunately, I don't have the data close at hand, but Twitter is actually not used by that many people online. You'd be surprised given the huge amount of proliferation that Twitter screenshots get, but honestly, I think that might just be a psyop, or I'm just paranoid.

I think there are people practically LIVING on these AIs.

I haven't taken time to track down the source, which is honestly why I'm sharing here instead of the dataisbeautiful community this time.

This is just website traffic. It probably wouldn't cover app only experiences like TikTok

I see Instagram in the third row from below, second square from the right.

TikTok, not sure.

You might be surprised to learn that nearly all sites collect this data by default. It's built into the standard analytics package of most hosted WordPress services, Cloudflare, Google, etc.

A simple JS script can collect your system and browser info, generalized location, exactly where your mouse is and for how long (which links you hovered over but didn't click, how you found menus and submenus, etc.), which search engine you used to get to the site, how long you stayed on each page, and so much more.

You need a browser extension to not provide this data, even on Firefox. I always recommend uBlock Origin and Privacy Badger. The two together generally do a good job of blocking most of these scripts.

Source: I'm a web developer

I imagine a lot of people have a tab with whatever their mail service is open all the time, and it's not much of a stretch to assume that Gmail is the most popular one. I'd doubt people are actively looking at it all that time, though.

Gmail will also send keep-alive pings back to Google's servers regularly until your login times out, which if I recall correctly lasts one week.