As an atheist, I ask for prayers that the backup's good.
E: Your solidarity has worked. The backup is good and not too old. Note for myself and you - install your OS on a snapshotting filesystem so that live backups are possible.
The motherboard has big, built-in heatsinks on its M2 slots. You install a naked NVMe drive in the M2 slots and the motherboard heatsinks (with thermal pads) hug it from both sides.