there is something wrong with the Roadmap on https://typo3.org/cms/roadmap
TYPO3 v11 LTS version will be fully supported for 1.5 years, and will be supported with security and critical fixes until October 2024.
This is not possible without the Support of PHP 8.x, have a look on
Please support 8.x and drop the support for 7.x.
With best regards,
Mansoor from Germany