I reached out to technical support earlier, but they could only advise that EasyMesh for the RE815XE is planned and I wondered if anyone knows if there is an ETA for when this would be.

I recently purchased the RE815XE and was surprised that the dedicated Wireless Backhaul via the 6Ghz band was unavailable until EasyMesh is, this feature was the main reason I got it, so I am tempted to return it.