Hi,

IIUC, "Symbols and Pictographs Extended-A"[1][2] is a new Unicode block
that showed up in version 12.0 and extends the "Supplemental Symbols and
Pictographs" block.

Since we use Symbola for the latter, I figure it wouldn't hurt to also
use this font for the former?  AFAICT Symbola covers the whole block[3].
Here is a patch to that effect: