So, after the FM 1266 has been on the Flybike website for a while (and changed from a Santa Cruz clone to something more original), Carbonda has now announced the same frame called "FM 1003" for end of 2021.

For geo and render pic, see link below
http://www.carbonda.com/news/136.html

It uses a four bar design with a large one-piece rear triangle, making it look more like a single pivot. I've done a quick analysis with Linkage X3 and the results are promising. Very nice linear progression thoughout the travel and 100 per cent anti squat at sag (32t).

Anti rise seems a bit high though. In theory, this means that the rear end won't extend under braking, keeping it low (which is a good thing). But also the suspension may get stiffer and lose traction when braking over a bumby surface.

Can't say if this is a copy of another bike. If not, then this is an impressive new development.