Answer
ETC does not currently offer a version of Eos with native support for Apple Silicon. ETC plans to one day release a Universal app that natively supports both Apple Silicon and Macs with Intel processors in the future. That being said, Eos v2.9.1 and higher can be run on Apple Silicon through Rosetta 2.
Additional Info
The first time Eos is launched on Apple Silicon Macs, if you have not previously installed Rosetta for other Intel-based apps, you may receive the following prompt:
After installing Rosetta, ETC recommends rebooting your computer as ETCnomad dongles may not function properly until a reboot is performed.