iPad Pro will not charge or register that it's plugged in

My 2020 iPad Pro (12.9", 4th gen) suddenly decided to stop charging last night. I plugged it in like I always do overnight, but it was dead when I woke up.

It will not even register when it's plugged in. I've tried about ten different combinations of adapters and cables, all of which worked on my phone, but it still shows that it doesn't think it's plugged in.

I've looked up as many solutions as I can and also tried cleaning the port, but nothing has worked. I was following this guide (If your iPad won't turn on or is frozen - Apple Support), but because my iPad is dead it won't even force restart. Is there some way to restart it while it's dead? How can I get it to register that it's plugged in?