On RHEL 7, sisevtd daemon is missing. However, on RHEL 9 we see 5 daemons.
RHEL 7:
RHEL 9:
14.3 RU9
The sisevtd daemon was introduced in RU9 to improve performance. This daemon uses eBPF (extended Berkeley Packet Filter).
Because eBPF is only supported on newer kernels, older kernels will continue to use Netlink.