There are more results on lcevc.org and more are coming out. Itself, LCEVC is agnostic to the underlying 'base' codec so it does enhance h.264, HEVC and AV1. Also EVC/VVC in the future, when they are available.
Very interesting. Are there any results using HEVC or AV1?
Not in this article, but, they are coming up using H.265/HEVC. Not sure about AV1 support yet though. This is becoming an MPEG standard soon so AV1 support should come out soon.