Man pages matching name probe::udp.recvmsg.return in section 3stap:

probe::udp.recvmsg.return.3stap.en	debian 10 / systemtap-doc
probe::udp.recvmsg.return.3stap.en	debian 11 / systemtap-doc
probe::udp.recvmsg.return.3stap.en	debian 12 / systemtap-doc