From Distrowatch, Fedora 43 review.
Once I had clicked the installer’s icon nothing happened for about a minute. Then the installer’s window opened and it spent another minute just sitting while text in the window told me it was “initializing”.
The new installer has a blocky, flat look to it (much like openSUSE’s new installer). Each screen of the process is painfully slow. Button clicks take several seconds to register and menus are slow to respond. The installer begins by asking us to select our language and keyboard layout from lists. Then we are asked to pick our timezone.
The next stage of the installer covers disk partitioning. While the installer will allow the user to select on which disk to install the distribution I could not find any way to select which partition(s) the installer should use or a way to create new partitions. The only option appears to take over the entire disk. This may be an effort to streamline the installer or a sign the new installer does not detect existing disk layouts properly. In either case it feels like a huge step backwards in terms of what the installer is capable of doing with a disk.
The next screens offer to encrypt the hard drive and ask us to make up a username and password for our user. There is a checkbox to enable a root account and set a password on it too. The installer then goes to work, very slowly copying files to the hard drive.
I was curious about this lack of performance form the new installer and did some looking into it. The new system installer uses 100% of all available CPUs the whole time it is running, even when it is sitting idly in background waiting for input. This causes my laptop fan spin up and run hard the whole time the installer is on the screen. I think the installer must have a bug in it which causes it to refresh its window constantly in an unchecked loop because the installer causes the kwin_wayland process (the window manager) to always consume all available CPU resources across all cores.