What is the most convenient and functional tool for creating Mindmap?

Question

Work organization

The program needs the following functions:
- The ability to choose options for displaying the connection between elements (most likely, something like just repeating arrows >>>>>>> will do for me)
- Write what kind of connection it is.
Moreover, so that it all looks beautiful and neat, provided that there is a huge number of elements and their fairly non-linear relationship (they will be scattered around the map and almost all are interconnected) What is
your choice?

Answer 1

in general - they are all "not sewn to ... a sleeve", but at least this one has a German name that is encouraging

Answer 2

Went through a whole bunch of them. Settled on Coggle. I haven't found anything better for myself.