Assets not listed on OpenSea (e.g. CryptoPhunks 0xf07468ead8cf26c752c676e43c814fee9c8cf402) do not display in xyz.eth galleries. XYZ rep in Twitter DM pointed to OpenSea API as required for gallery inclusion. Phunks aren’t on OS.
Knowing that XYZ doesn’t support non-OS assets limits is utility for me, and may limit its future as the default address inspector.