Tech specs are right in between ESP32 and Raspberry PI Zero. This would make a nice OpenWRT router or torrent server, if you can solder some external Ethernet chip on it.
Is it really enough for a router? Does it have any hw acceleration for cryptography or network routing?
I have a pretty modern AP and sufficient managed switch that never crashed in 8 years, but my router is the bottleneck WITHOUT any analytics, logging or more involved security features.