Dead Logic Board

One morning I woke up to my 2016 MacBook Pro 15" with its fans running at 100%. The computer was not hot in any way, in fact it was quite cold. I assumed it was an SMC failure, however, upon opening the lid the computer did not want to boot. The apple logo would appear but the bar would only go about a third way before resetting. I force shut down the computer with ctrl+alt+shift+power and attempted to reset the SMC and NVRAM multiple times; however, nothing appeared to work. I got on a chat with Apple Support where they tried the same thing with no results. I was able to get into the recovery menu, where I was instructed to do a drive erase and a reinstallation of MacOS. The reinstallation failed and instead we restarted the computer and went into the Internet Recovery section. We wiped the drives again and tried, but failed, a reinstallation of MacOS. I was instructed to restart my computer again, but into recovery instead of internet recovery. I was unable to get into recovery and instead I could only get into internet recovery. I force shut down the computer again to try to get into recovery mode, but the computer started acting really weird. It was able to turn on and get into the initial internet recovery screen, but it would turn off as I was entering my internet password in. I kept trying to boot into recovery but the computer was staying on for a shorter and shorter amount of time after every power-on. Eventually the computer was turning on and off so quickly and I had no control over it. It was not responding to anything and its fans, which were still at 100%, kept powering on and off. Eventually everything stopped and the computer did not turn on at all. I took it to my local Apple Store which said it was a logic board failure and I payed the repair fee for a new one.

However, I'm wondering where anything could have gone wrong. I have always taken extremely good care of my electronics and I'm almost disheartened knowing that one died in my hands. I am wondering if it was one of my external devices as well. I recently bought a 100w four port usb-c charger, it wasn't a name brand or anything but it had great reviews and seemed to work well. I also use a 32" 4K monitor through a usb-c to hdmi cable, as well as an Amazon Renewed VAVA usb-c hub with 100w passthrough charging, two usb-a devices and an additional 27" 1080p device hooked up. The device gets kind of hot when both monitors are connected and every now and then I accidentally leave it plugged in overnight, but usually the device sleeps after around 15 minutes of inactivity. Any help with what could have gone wrong is greatly appreciated, thank you in advance.