Our TV is on a tripod and we move it from room to room. Soon to be a wheeled tripod as our new OLED is quite a bit heavier than what it replaced. Anyway, when I want better sound I run an optical cable to my DAC and mute the Tv.
Our TV is affixed to the wall, but we’re also using that strange fiberoptic umbilical from time to time.
I don’t think of my main stereo as an A/V rig, and generally don’t use it while watching TV/movies/YouTube.
Sometimes it’s nice.
That’s often canceled out, though, by having to act as tech support when I forget to turn the TV’s internal sound back on/up after watching with the stereo.