Samsung 2022 A Series User Manual page 297

From Settings , tap Biometrics and security , and then tap Encrypt or decrpyt SD card . If you have a screen lock set up, you may need to enter
your credentials. Review the information about encrypting your microSD card, and then tap Encrypt SD card .
To decrypt the micoSD card, tap Decrypt SD card .
Note: This setting may not appear unless you have a SD card inserted in your phone.