Moving and unrouting, what do I worng?

To me it also sounds like unfamiliarity with the selection filter in the lower right corner of the PCB editor.

Aso, a few years ago Rene Poscchl wrote a FAQ article on this forum about:

It has not been revised after 2021 (which is quite old for KiCad) but it will probably still be usable to point out the main differences between eagle and KiCad. I have never (seriously) used eagle myself, so I can’t help much in this regard.