Its primary value is the "queue and forget" workflow, allowing you to export multiple projects from different Adobe apps simultaneously without locking up your workstation.
You can designate specific folders to automatically trigger encoding; any file dropped into these folders is instantly processed using predefined custom presets.
The 2020 release introduced broader support for file formats and improved hardware encoding, which can theoretically cut render times in half compared to software-only encoding. Media Encoder CC 2020 very slow - Adobe Community
