If you install Magento 2.4 via Softaculous, you'll also have two-factor authentication enabled.
Sadly Magento configures the default address to owner@example.com, meaning you'll never be able to get your 2FA token, due to the fact emails cannot be sent via owner@example.com
To get access to the admin interface, you'll have to disable the Two Factor Authentication module in Magento.
To do this, you have to access the console (e.g. Terminal in cPanel), go to the directory where your Magento installation is (Often public_html).
After this run:
php bin/magento module:disable Magento_TwoFactorAuth
You'll now be able to actually log into Magento.
