Is it possible to show the verification code request directly after the customer has registered?

So far, after registration, verification is only requested when the user clicks on their account and wants to create a listing.

This means that a user who has provided a fake number has the option of contacting customers who have created listings, but this should only be possible for verified users.

I have also installed the WhatsApp chat plugin.

Option: "When enabled, only logged-in users can use contact button."

This means that users who have registered with a false and not yet verified number have the option of contacting customers with listings.

Redirect user to their account after registration.

Redirect user to their account after registration.

Ok,Thanks.
I couldn't find the option to redirect the user to their own account directly after registration in the settings or in the plugins. Is this change only possible manually in the PHP file manager?

Check User > Settings, something could be there.
If not, you should create redirect function after successful login.