Does Openwrt's Prplmesh support raspberryPi 4 ?

I'm checking if prplmesh works on the raspberryPi 4 device.
The way I searched and executed...

I started the build by set up the openwrt as raspberryPi 4 and adding prpl feed.
This build is successful and I checking this.

However, It was difficult to know how or setting the prlmesh works.
While I was looking for the content, I saw the following content..

"Raspberry Pi 4 and in general all pi's don't have 802.11s support. This support has to be present in the kernel driver on openwrt.."

Does Openwrt's Prplmesh support raspberryPi 4 ?

My build information is