I too would like to know. This whole discussion made me realize I finally have an income where I can just build a PC and stream from that instead of the surveillance devices like chromecast or fire sticks
Yeah just build a multimedia/gaming pc and you can do it all. Plug in a large screen (smart tv) via hdmi as the monitor, a wireless keyboard and you're good to go. Best thing is it's all modular so you can modify software/hardware as needed. Sourcing content is ever changing but overall the options are better than ever.