Re-Captcha on Safari

Hello aktak,

For help with using Safari and entering details for a CAPTCHA as expected, test updating your software to ensure you have the latest version of Safari available. If needed, the steps below found in the article here can assist: Update macOS on Mac

"Use Software Update

Before following these steps, it's a good idea to back up your Mac.

1. From the Apple menu  in the corner of your screen, choose System Settings or System Preferences.

• If you chose System Settings, click General on the left side of the window. Then click Software Update on the right.
• If you chose System Preferences, click Software Update in the window.

2.Software Update then checks for new software. 

• If Software Update finds new software, click the button to install it. The button might be named Update Now, Upgrade Now, Install Now, or Restart Now, for example. You might then be asked to enter your administrator password.
• If Software Update says that your Mac is up to date, then no new software is currently available for your Mac model. Software Update shows only software that is compatible with your Mac.

"

You can also find helpful update details in the links below.

About the security content of Safari 16.3

Apple security updates

Be sure to also test the issue in a private browser. Browse privately in Safari on Mac

If the issue continue, reach out to Apple Support directly to further assist.

Contact - Official Apple Support

Contact Apple for support and service - Apple Support

Best.