I know you can find Roku channels apps in the phone app through the search. How do you find Roku channel store listings in the Phone app complete with categories like you do on the Roku box?
If it's not in the Roku app, then you can use a regular browser to go to https://channelstore.roku.com/browse
If it's not in the Roku app, then you can use a regular browser to go to https://channelstore.roku.com/browse