So I just received my new Lenovo E570 laptop in the mail yesterday. It includes a Toshiba XG4 (M.2 NVMe SSD) (model number THNSF5256GPUK; see https://toshiba.semicon-storage.com/info/docget.jsp?did=55015). For daily usage, everything seems perfect. Bootup takes only a few seconds.
But running...