Very few people actually do the couchsurfing or couponing style because to most people that approach is miserable and/or dangerous.
Not everything is a scam.
There are thousands of small businesses who need a developer/digital rousabout. I am talking 5-20 employees.
You make your life far more complicated if you try to freelance many clients, as it can be difficult to organise everything and be available at all the right times. Possible obviously, but why not save yourself the hassle amd just manage some small businesses ecomm website or something, and go enjoy your time abroad.
If you can, it’s probably easier to go remote with an established income than quit and start from scratch while travelling. Otherwise you will spend a lot of time hustling to get clients.
This said, I do not claim to be the smartest guy when it comes to business, nor to development…