Zend certified PHP/Magento developer

Magento 2.3.0: Web Setup Wizard Page, Nothing happens after Fresh Install

This is a fresh installation. I have two issues:

  1. I keep on getting 500 Internal server error till i do not rename .htaccess to .htaccess1, is this normal, if not how can it be fixed?
  2. Admin panel shows 404 error, while the env.php shows the correct backend name
  3. Front end shows the following message:

Welcome to Magento Admin, your online store headquarters.
To use the Magento setup wizard sign into your Admin account and navigate to System => Tools => Web Setup Wizard

on the URL: https://example.com/setup/index.php/session/unlogin

All file and folder permissions are set as:

find . -type f -exec chmod 644 {} ;

find . -type d -exec chmod 755 {} ;

find ./var -type d -exec chmod 777 {} ;

find ./pub/media -type d -exec chmod 777 {} ;

find ./pub/static -type d -exec chmod 777 {} ;

chmod 777 ./app/etc

chmod 644 ./app/etc/*.xml

I do not see the front end nor the backend. Please suggest.

Regards,
Aashish