I mentioned this in some earlier post and investigated it a bit but it does not seem to be any better than the Club3D, just a bit more convenient since you don't need a separate USB-C cable. On the flipside it means it does not work on newer GPUs that don't have a USB-C output.
I wanted one because the Club3D adapter cannot do 4K 120 Hz from my Macbook Pro but it seems like this might not do that either. Likewise VRR is not possible on this one either.
Afaik it's exactly the same Realtek DP to HDMI 2.1 converter chip on both but CableMatters is USB-C and the Club3D is DP + USB-C only for power and firmware updates. Club3D was supposed to release a USB-C version of their adapter too but I don't know what happened to that.