The method of scholarship disbursement is completely up to the scholarship provider. If you win a scholarship, the scholarship provider typically reaches out to you to coordinate the terms and conditions of scholarship disbursement.
They sometimes request additional follow up information to verify grades, enrolment, coursework, etc. before the scholarship award is disbursed. They will also confirm how the scholarship will be disbursed to you. Typically, scholarships will be sent directly to your university (after you provide the proper financial aid office instructions and your student account/ID number) or sometimes scholarships are disbursed directly to you for use on education-related costs.