Note: this is not a request for troubleshooting help.
For the past few years my 10ish year old “smart” TV will maybe once a week or so completely lose the ability to play sound in the Youtube app, and only in the Youtube app. Sound works just fine everywhere else. Bizarrely this is always triggered by an ad and never a video. Restarting the app doesn’t fix it, and neither does clearing the cache. Fortunately doing a full restart of the TV fixes it, it’s just irritating to have to restart because an ad somehow broke the sound.
If my desktop is sleeping, turning off my bathroom light will 2 out of 5 times wake up the pc.
It's a fluorescent lamp, so it is likely that it makes considerable noise on the electrical circuit when being toggled (and it's a small apartment so all lights and outlets are on the same circuit)
I believe I read a forum post from someone else experiencing the same thing, and they also had a Gigabyte motherboard. So it might be related to their bios/firmware implementation of wake-on-lan in some way.