.cpanel/
public_html/
public_ftp/
..

app/
bootstrap/
public/
vendor/
composer.json
artisan
..

RewriteEngine on
 RewriteCond %{HTTP_HOST} ^(www.)?example.com$
 RewriteCond %{REQUEST_URI} !^/subfolder/
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d
 RewriteRule ^(.*)$ /subfolder/$1
 RewriteCond %{HTTP_HOST} ^(www.)?example.com$
 RewriteRule ^(/)?$ subfolder/index.php [L]