LG rant

I spend $1500 for Q4 tv. First the Spectrum TV app is unavailable which is where all my regular programs are. Second the only way I can get the app is using my Roku streaming stick but can’t control the volume or turn off and on. Is there anything I can do? With My old Samsung tv I could get the spectrum app or I could use my Roku and could adjust the volume and turn the tv off and on. If I would have known I’d this much trouble I would have bought something else