The number of .htaccess files you should have depends on the specific needs and configurations of your website. Typically, you only need one .htaccess file for a single website. This .htaccess file is placed in the root directory of your website and can be used to control the behavior of your website, such as redirecting visitors, adding security, and managing caching.
However, in certain cases, you may want to have multiple .htaccess files for different directories within your website. For example, you may want to have different redirect rules for different parts of your website, or different security settings for different areas. In these cases, you can create separate .htaccess files for each directory, and those rules will only apply to that specific directory.
So, the number of .htaccess files you should have depends on the complexity of your website and the specific rules you want to apply to different parts of it. If you only have a few simple rules, one .htaccess file may be sufficient. If you have more complex needs, multiple .htaccess files may be necessary.