It doesn’t look like Evo partners with Roon, so they are responsible for ensuring their bespoke Linux meets Roon’s minimum requirements, which were published and communicated a month ago (on the forum and in the monthly Roon email.)
For Linux this means your device is running very old binaries for glibc and OpenSSL. Ask the vendor for a firmware update.
You are correct, rollback is not available for Roon software. If you want Roon to learn about your dissatisfaction, please write in Feedback since that is monitored along with Support.