You can just autofill the verification code from your keyboard -- but you can't do it from just any third-party email application. If you want to autofill email verification codes on iOS 17, here ...

Click Send email to have a verification code sent to the email address on file. If the email address is incorrect, click the Email address menu setting under User Info to change it.

Select a sign-in method from the options. Choose between entering a password or a verification code sent to the email address. Select the Enter your password option.

Check the Turn On box. The system will send you a verification code in your email that is linked to your EA account. Go to your email/text and use the code to activate Login Verification.

Android apps can automatically detect verification codes or OTPs sent via SMS, and it looks like Chrome for Android will also support this.