Test Days for Fedora 45: Help Us Test the Big Changes

Hey there. I have never been through a test day before. Is there some primer on how this is meant to work? Particularly looking forward to the boot/live media testing, kernel, and stuff to do with the KDE Plasma desktop environment.
Does the scheduling mean there is one day to do both the testing and reporting issues and there is a close date for issues?

A few other questions:

  1. Is this still due for Fedora 45? Changes/BtrfsWithFullSystemSnapshots - Fedora Project Wiki
  2. Also curious about the grub+uefi for confidential computing. Instead of grub, wouldn’t a signed systemd-boot and/or UKI be a more appropriate fit in this instance?

Another thing worth noting, by the time Fedora 45 is due for release, Plasma 6.8 would have been released.