Thank you a lot for such a detailed answer! It was funny to read 🙂
I found out it minimize travels with Thin Walls option enabled. I don't know why, but it worked out. Anyway, Combing option is not make any difference in any of configuration I tried. I've found a lot of discussions about Combing option weird behavior in Cura >5.0, so I've tried to use Cura 4.13 and Combing made the trick even without Thin Walls option almost without traveling outside the model and stringing.