Got around to trying this image from the github
Armbian_22.08.0-trunk_Radxa-zero_focal_current_5.10.127_xfce_desktop.img.xz
I get the error in dmesg
brcmfmac: F1 signature read @0x18000000=0xffffffff brcmfmac: brcmf_sdio_probe_attach: ChipClkCSR access: err -5 wrote 0x28 read 0x00 brcmfmac: brcmf_sdio_probe: brcmf_sdio_probe_attach failed brcmfmac: brcmf_ops_sdio_probe: F2 error, probe failed -19... brcmfmac: probe of mmc0:0001:3 failed with error -5 usbcore: registered new interface driver brcmfmac