Also, you might have to go into filter lists in the uBO dashboard and make sure you’ve checkmarked everything.
I’m not sure what can be done about a fire stick. I’m lucky because I have a mini PC connected to my main TV that runs Linux so I can use that to stream whatever I want. It’s one of the best setups I’ve ever had for entertainment. I just got one of those cheap wireless keyboards with a trackpad for $10 from newegg, and Linux Mint has a setting to make the UI more usable from a distance.
I do use a Roku sometimes when I travel for work, and I just deal with the ads, so if there’s a way to make something like a fire stick or roku work with a custom OS, that would be nice, but I’m not aware of anything.
Edit: Just noticed u/[email protected] has information about smarttubenext. Might look into that.