Full Unicode support has been enabled in config.php MariaDB 10.6.3

After upgrading PHP to 8.0.9 and MariaDB to 10.6.3, I get this message in ACP:
Code:

Full Unicode support has been enabled in config.php but your database is not set to support this. Full Unicode support should be disabled or errors may occur.

There was no $config['fullUnicode'] in config.php, but even with $config['fullUnicode'] = false; I get this message.

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