There is no one-size-fits-all answer to this question, as the best decision for your WordPress site may vary depending on your specific circumstances. However, there are a few things to keep in mind when making this decision:
First, make sure you have the space available on your server to install WordPress in the root directory. If you’re using a shared hosting account, or your server doesn’t have enough space to install WordPress in the root directory, you may want to consider placing WordPress in a subdirectory.
Second, consider whether you need to use a custom domain name with your WordPress site. If you don’t want to use a custom domain name, you can place WordPress in the root directory and use a custom domain name (such as mysite.
com) to host it.
Finally, keep in mind that if you decide to install WordPress in the root directory, you’ll need to configure the WordPress server to allow domain name resolution for that directory. You can find more information about this on the WordPress website.