Audio? Weird again. For my PC I have a Scarlett 2i2 that I plug my ATH-50 headphones in to, and the line out on the 2i2 runs to a super SUPER old pioneer amp that’s connected to some equally old Technics box speakers, which don’t sound great but get loud. That all connects to my PC and laptop through the KVM. I have an Apple TV that’s connected to a Denon AVR, which has two Focal Choras connected to it. When the laptop is connected I can play music out both sets of amplified speakers together, without Bluetooth or anything, using the Apple Home home play thing. I live in a relatively small house, so that covers most of it. I think I might add in a HomePod so I can have a speaker in the kitchen while cooking, and outside in the backyard when chilling by the firepit and stuff. I’m really hesitating to do it though just bc I’m not sold on the wireless stuff, but the HomePod uses WiFi not Bluetooth so it’s not as bad I guess.