.htaccess file recommended for subfolder install of WP

Hi all,

Can anyone recommend what the contents of an .htaccess file should be for a subfolder install of WP?

I have multiple WP installs, one at the public_html level of my hosting and another in a subfolder. Recently I compared the .htaccess files and they are different.

The .htaccess file at the public_html level blocks access to critical WP files e.g. wp-config.php but the .htaccess file for the subfolder install does not.

Im not sure if the blocks to access of critical WP files should be included in each .htaccess file for each install of WP.

Can anyone advise what should be done?