I rip Blu-ray disks in full minus foreign audio tracks to my PC and stream via Plex to an Nvidia Shield. I watch on an LG 55" OLED with a 5.1.2 audio set up.
I also use the three main streaming services as.
Try Emby, you will not regret doing so.
Just replaced my WDTV with a Vero 4k+ - why didn't i upgrade sooner?!
Awesome bit of kit and on offer atm.