The installation guide is not easy for me to understand to install TYPO3.
The decompressed file was placed in the path /var/www/test. I create the FIRST_INSTALL file.
I create the database, the user is root and at the end it shows me that Not Found The requested URL was not found on this server.
I was investigating on other websites but I found the same detail.
It is difficult to install this tool.
It sounds like you have overseen the part of creating symlinks in the documentation:
Besides, you should not start a new project with TYPO3 v11 anymore. v11 is only in security-support (and this will end in October). For new projects, please use v12 (or for bigger projects that will go live in some month, you may already take the coming v13)
Installing (and maintainer) a TYPO3 instance might be easier by using the recommended way of installation via composer: https://docs.typo3.org/m/typo3/tutorial-getting-started/main/en-us/Installation/Install.html