It’s basically how almost all freelancers get work in Sweden, via “consultant brokers”.
Basically a bunch of sales people whom you call and say “I want an assignment and I know X, Y and Z” and they hook you up with an assignment in exchange for 5-15% of what you invoice.
I’ve been using them ever since I started in 2018 and never spent more than 1-2 hours to land a 6+ months long assignment