Will Samsung S20 FE work on Xfinity Mobile Network

I've decided to transfer from verizon to xfinity mobile network.

I recently bought a Samsung S20 FE phone.

The Xfinifty phone compatibility app reports "sorry. we are having technical difficulties"

when I attempt to check m,y phone for compatibility w/ the xfinity network.

Is there any else I can check the phone's compatibility w/ the Xfinity's mobile network?

Thanks