Good video, very much worth watching despite the length. New UI will look something like this:
with an option for a more classic look.
Looks like an enourmous UX improvement too, and a rewrite to QT and eliminating a lot of technical debt will make development faster.
Frankly, since it's still open source, I'm ok with it since it also means developpement is much faster, and you can avoid it. At least for me when I installed it on linux through the app store, I didn't notice any of your complaints.
As someone with no attachement to the previous branding I quite like the new branding though, fits the new vibe of the app quite well.