Roku Streaming Stick Plus With Harmony Remote

Harmony uses your wi fi network to launch apps e g youtube or netflix.
Roku streaming stick plus with harmony remote. Roku express roku express roku streaming stick only models 3500 3600 3800 premiere only model 3920 premiere only model 3921. With thousands of available channels to choose from. So far it can pick up my roku 2 but it can t find my roku stick. My cell phone s roku app can pick up the roku stick but only if i type in the ip address.
I ve heard you say that you like logitech s harmony remote universal remote control. Roku provides the simplest way to stream entertainment to your tv. The myharmony app scans the network but doesn t find the roku stick even tho the hub and stick are on the same wifi network. It makes since that if the streaming stick does not use ir then it is not compatible with the 665.
Within the button commands section in the harmony app there are zero commands. Roku streaming stick does not have ir capabilities and cannot be controlled with harmony ir remotes. I have one too but i can t seem to make it work with my roku set top box yet it s fine with all my. The roku streaming stick plus streams the 4k and hdr video from netflix amazon vudu apple tv and others comes with worthwhile features like a voice remote with buttons that can control your tv.
My understanding is that the streaming stick does not use ir for its remote so the universal remote i originally tried logitech harmony 665 did not work with the roku streaming stick. There is not a list to choose from to assign the corresponding button. It is supposed to be able to connect to rokus. Some roku devices send infrared ir signals for device control such as adjusting the volume or changing the channel.
Looking for a universal remote that will support the roku my samsung smart tv and potentially other devices in the future.