While this is not an official Samsung font.To install it, please download the file from the following link: https://drive.google.com/file/d/1xHuMJINix7-SbkpkdqGZ5C_9uq7g3B-i/view?usp=drivesdk. After downloading, navigate to the lock screen, slide left, and then select the three dots. You will then see the option for "Oppo large font."
