I guess it’s like a pen for some writers. If stuff you create with it is successful why would you change it?
As Alyona says on her Instagram “I don’t depend on inspiration. Sometimes I have to sit and work on new song for hours without a success. I argue with myself, with God, with anything. Then I start to have some progress”.

As I understand, once she finishes a song, she goes to a studio and she works on an arrangement with other musicians. They make a professional demo with professional singers and then a song is offered to a popular artist.

This is one of her songs: