If you want to download Magento 2.4.5 then you can not download it in the zip format. Magento stops providing the zip of the Magento version. You must have to download Magento 2 by command line.
Composer Command to Download Magento 2 Open Source (Community Edition)
composer create-project --repository-url=https://repo.magento.com/ magento/project-community-edition
Composer Command to Download Magento 2 Adobe Commerce (Enterprise Edition)
composer create-project --repository-url=https://repo.magento.com/ magento/project-enterprise-edition
Below are detailed steps to download Magento 2.4.5 open source using composer:
Step 1: Connect to SSH of your server or just open the CMD prompt of your local system.
Step 2: Make sure the SSH user has write permission.
Step 3: Then run the below command to download Magento 2.4.5 open source
composer create-project --repository-url=https://repo.magento.com/ magento/project-community-edition:2.4.5
If you do not add any version name at the end of the command then it will automatically download the latest version of the Magento 2
Once you are down with the downloading of Magento 2, you have to install Magento 2, review our blog post How to Install Magento 2 for more details.