The smlight slzb-mr2 does both and is PoE - makes it more robust. HA comp goes down? Restarts? USB port change and now the passthrough fails? With an independent LAN coordinator the zigbee network is fine. I don’t have threads stuff (yet) but I assume the same applies.
I’ve had no issues, the Ukrainians already got this solved. Get from Ali express (Ukrainians don’t produce them, they’re busy being bombed)