I've noticed some OperaGX processes using a lot of DiskIO (both read and write). Right now, I have one Opera.exe process at 70GB read and 30GB written. Task Manager tells me the page it's looking at is "https://www.powercolor.com/product-details125.htm". This page is not even open. I've closed it down and it has still been read/writing for the last hour (I don't know what the numbers were when I closed this tab). You can enable seeing what page the process is by enabling the "CommandLine" column in Task Manager.

Why is OperaGX going nuts my C: drive on a website that hasn't been open for an hour? Seems like there's a bug where an Opera process gets stuck reading/writing when you close it and never kills the process afterwards. All these writes are very bad for SSDs that only have a finite amount of writes you can do.