WordPress Permalinks not working on Ubuntu

You need to edit your vhosts conf file, you get the conf files in /etc/apache2/sites-available and edit the 000-default.conf

<VirtualHost *:80>
    ServerAdmin webmaster@localhost
    ServerName widelly.com

    DocumentRoot /var/www/widelly.com/public_html
    <Directory />
        Options FollowSymLinks
        AllowOverride None
    </Directory>
    <Directory /var/www/widelly.com/public_html>
        Options Indexes FollowSymLinks MultiViews
        AllowOverride All
        Order allow,deny
        allow from all
    </Directory>
    
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

Once you added this code don’t forget to restart your apache

sudo service apache2 restart