Why do I need multiple versions of Media Encoder? - Adobe Community
At its core, Adobe Media Encoder (AME) is a standalone rendering and encoding application designed to automate the process of creating multiple encoded versions of source files. In 2020, version 14.6.0.42 focused on streamlining the hand-off between high-resolution master files and optimized deliverables for web, social media, and broadcast. adobe-media-encoder-2020-v14-6-0-42-full-version-download
You need AME 2020 only if you're using it to encode projects from another Adobe application version 2020. If that is not the case, Do i need 2 versions of the Media Encoder? (2021 and 2022) Why do I need multiple versions of Media Encoder