Having taught people coding for awhile, I don't think the step-by-step teaching models work with coding. It creates an environment where students just think about the next step without internalizing what they learned. I've met students who have gone through freecodecamp's exercises and really struggle with using what they learned.

Edabit seems too heavily on algorithms. I've seen many beginner students get quickly burned out from doing algorithms when starting out.

I've found the most effective way to teach coding is to make their learning project based (very much like how professors taught concepts back in college). Build X, Y, Z, each project building up in complexity so students can think about different combinations of everything they learned to complete the project.