I’ve done some stuff through Appen before, it’s AI training projects mostly, it’s not well paid and the projects I’ve been on became a slog after a few weeks but it’s work from home and you don’t really have a boss. You’re just expected to do your x hours of work on your project(s) per week.

I just did a bit of searching and apparently they lost their contact with Google and they got a lot of people during the pandemic (some have stuck around) so maybe not viable anymore.