Eve Devices originally pitched the Spectrum as the ideal display for enthusiasts - then pushed its delivery date back until well into 2021. However, it is still posting updates to its community website as a sign it is working on getting the product to the shipping stage. The latest one claims it is crossing things off a long list of desired features, which include VRR and an inbuilt frame-rate counter.
https://www.notebookcheck.net/Eve-posts-a-Spectrum-monitor-update-assuring-the-inclusion-of-fan-requested-features-and-VRR.518540.0.html