I think you are missing the new gnome-shell build that adamw added above. https://kojipkgs.fedoraproject.org//packages/Fedora-Workstation-Live/32_Beta/1.2/images/Fedora-Workstation-Live-x86_64-32_Beta-1.2.iso just finished and should have the complete set of changes here, if it helps.
We are done editing this and adding new builds now. I've removed the note we had before to not add any karma -- from now on karma is appreciated :) Thanks!
The latest edits should hopefully get pushed out to updates-testing soon. releng is working on this (there were some build system issues today that broke things). adamw also requested a candidate compose including 3.36.0 so we should get an iso image soon as well.
Ah yes, it's 'gnome-extensions-app' indeed. I believe it was changed because GNOME designers asked it to not be pre-installed. I don't know the details; fmuellner changed this. If you disagree with this decision, can you file a Workstation WG ticket at https://pagure.io/fedora-workstation and we can discuss it more there?
OK, I've added updated flatpak runtime here. It contains an nss update that's required for making new firefox work correctly. This should hopefully hit the testing repo tomorrow after next updates push, can you give it a try again then? Thanks!