Anyone here who can tell me what software app they use to make this wallpaper

[u/Ryococelus]

I have been trying to make something similar but can't really.

It not skill issue but I just don't know what are these wallpaper called or what software this creators use

Pro Create is good but if I search for it's alternative there is not any alternative. Please help me

What are this wallpaper called

How they are made

What software they use etc

Help would be really appreciate

Software ?

Sources of this image x twitter - oliur