It's the open mould version of an Ari Shafer.
Bikeinsights confirms that their geometries match exactly, if you compare the Fezzari Shafer from 2021. It seems that like all gravel frames, the newer model of Ari Shafer is far less upright. It seems these open moulds are the only modern options for upright gravel frames, at least for people under 1.8m. Some newer frames have stack/reach ratios over 1.5:1 only in the larger frame sizes.
Would you happen to know what the CWind GT30 (SPcycle G058) is an open mould version of?