Hi @Dmitry Novik • Thank you for reaching out.
This can be done by using Custom Policy. There is no sample readily available that exactly matches your requirements, but you can refer to the sample to Separate the Email Verification and User Registration into 2 separate screens.
Unfortunately, this can not be done via User Flows as of now.
-----------------------------------------------------------------------------------------------------------
Please "Accept the answer" if the information helped you. This will help us and others in the community as well.