Do NOT delete or overwrite your wp-config.php file or the wp-content folder. Important Security Warning WordPress 5.2.2 Maintenance Release

Resolved issues like incorrect RTL navigation arrows in the media modal and broken theme update links within the Customizer for multisite installs. How to Install or Update to 5.2.2 Method 1: Automatic Update (Recommended)

Better keyboard navigation and focus states for dashboard elements, aiding users with screen readers.

On your server, delete the wp-includes and wp-admin directories.