looks like changing to phy0 works
verified that not my prepared service file (uses managed mode instead of ap-mode from netdev file) is started
# iw dev wlan1 info
Interface wlan1
ifindex 12
wdev 0x2
addr 00:0c:43:26:60:10
type AP
wiphy 0
multicast TXQ:
qsz-byt qsz-pkt flows drops marks overlmt hashcol tx-bytes tx-packets
0 0 0 0 0 0 0 0 0
# iw dev wlan2 info
Interface wlan2
ifindex 13
wdev 0x3
addr 00:0c:43:26:60:10
type AP
wiphy 0
multicast TXQ:
qsz-byt qsz-pkt flows drops marks overlmt hashcol tx-bytes tx-packets
0 0 0 0 0 0 0 0 0