macOS Tahoe will be the last release for Intel-based Mac computers. Those systems will continue to receive security updates for 3 years.
Rosetta was designed to make the transition to Apple silicon easier, and we plan to make it available for the next two major macOS releases – through macOS 27 – as a general-purpose tool for Intel apps to help developers complete the migration of their apps. Beyond this timeframe, we will keep a subset of Rosetta functionality aimed at supporting older unmaintained gaming titles, that rely on Intel-based frameworks.

https://developer.apple.com/documentation/apple-silicon/about-the-rosetta-translation-environment

… oder auch hier: https://www.heise.de/news/Macs-mit-Apple-Chip-Intel-Software-laeuft-in-Zukunft-nicht-mehr-10459981.html