These are problems humanity solved over 35 years ago (see NeXTSTEP). Why are these designers breaking basic features that worked for over 35 years?
I wish the average dev would recognise this.
Steve's brain fell out when he got back his throne at Apple. Aqua was a mistake.
That the roles got reversed became painfully clear when macOS copied the Windows Vista style popup mess for access permissions.
Windows Vista may have been plagued by programs assuming administrator access for everything but at least it isolated the security prompt.
You can verify that you're interacting with a real UAC prompt (by pressing ctrl+alt+delete for instance, which can be configured to he required before approving a prompt).
Any program can replicate the macOS security dialogs. You just have to hope that you can safely enter the password to your account into one, or activate TouchID when prompted.
Designers probably have perverse incentives. Showy new designs get promotions. Even when they hurt usability, it's often only in insidious ways.
Do not hire visual designers as UX designers - unless you know what you're doing.
The best UX designers design to solve business and user problems and work within constraints.
"Socrates", in Plato's Republic
None of us are immune to cycles in fashion, and the need to differentiate ourselves and our work from what came before, even if what came before was pretty much a solved problem.
Maybe it's humanity's way of escaping local minima, or maybe it's an endless curse which every generation must bemoan.
I am. If it isn't broke, I don't fix it. And I suspect others are as well. The problem is that too many people are not immune, so it doesn't matter if some are.
On the back of my mind I think part of this was the move to fit scaling to large resolution monitors (i.e. 4k+) work better, as a graphical border of a fixed pixel width will shrink proportionally compared to a border that is as thin as it can be. For a while I've felt that it's a missed opportunity on high res displays to not use more detailed art for window chrome as pixel wide will only get smaller and more difficult to distinguish, such as the minimize/maximize/close icons which remain pixel wide line art even at big scaling.
If the anchor point for window resizing was more inside the window, then you encounter an annoying problem where youre trying to click or drag content, but you end up just resizing your window instead.
The obvious solution is to just keep the old bezel that separate the content from the scroll wheels / resizing handles and make it visually obvious what you're doing, but apparently they think that's too ugly.