We have two rooms wired for AV so they are cable free. Really worth doing imo and not that expensive if you have someone that knows what they are doing. In the sitting room I have a denon av amp that is connected to a sky box, Blu-ray and sonos connect. It feeds three monitor audio speakers in a long hi fi cabinet that sits under the tv. They pick up front left, front right and centre channels. Have two other MA speakers mounted on the wall picking up rear channels. The cabinet also houses a REL subwoofer.
In lounge I have separate AV and hifi systems. The AV has a Denon amp at its heart, Sky q box and Blu-ray connected. I have a MA soundbar which picks up the front three channels and 2 wall mounted MA speaker picking up rear channels. MA subwoofer as well. Both systems are good but the one in the lounge has the more expensive amp and speakers and can crack floorboards if it’s cranked up on a good Blu-ray disk. All the internet enabled kit is hard wired into the internet router through Ethernet connections. My experience is that I wouldn’t go past denon amps. Good sound, very reliable and choose how much you want to spend as they have 4 or 5 models. Whoever you get your sub woofer from, make sure after sales is top notch as this is the component that I have had most problems with, particularly the internal amp going. Give different speaker systems a listen before buying. Sound bars are great for neatness. But I prefer the separate speakers for sound stage.
The hi fi system has a Linn streamer/amp, mission CD player and two monitor audio gold floorstanders. There is a sonos connect hooked up to it as well so we can take advantage of multi room. I am looking seriously at getting back into vinyl. I hardly ever play cds nowadays, sound quality of Tidal is as good if not better. If my house went on fire, the hifi system is what I would rescue first :-)