The entire smart-tv space is definitely fractured, and trying to develop for so many platforms all at once can be frustrating, especially when you're doing so in your spare time. Thankfully, at least in my case, I've had someone more experienced step in recently to help with a side-project on AndroidTV, but I digress.
Honestly, if I had a dongle for my Chromecast that supported ethernet, and I weren't too lazy to order one, I wouldn't really use the Roku anymore. With the removal of the Twitch channel, Spectrum channel, and others, I'm becoming more and more disenchanted with the platform.
Fortunately there's an unofficial "uncertified" third party channel you can add to get back basic Twitch support: https://www.fanbyte.com/guides/how-to-watch-twitch-on-roku-d...
I haven't found anything similar for Reuters, so I just have their YouTube feed now, but I still miss the nicely packaged 15-30 minute segments.
Outside of the TVs with Roku built in I wonder how many people will buy Roku devices in the future. It will be hard for Roku to continue to compete if they have say, 10-20 percent market share.
I use a Roku now, but I don’t think I will in the future. My tv is older, so no built in apps. Roku was a cheap way to add that functionality without a big box. With that said, I am regularly disappointed with the performance of Roku especially with Plex. I am considering an Apple TV because I know IOS devices work well with Plex and there is a more robust app ecosystem available.