I've been blown away by amazon/gcp/azure whose uis progressively waste more and more space. I actually measured it, and on a normal (11"?) laptop screen the list of vms occupied something like 15% of the screen space, the rest being sticky pannels, banners, sidebars, toolbars, etc. Combined with "resizable" panes that are restricted to max 30% of the parent area size I can see between 1 and 2 lines of results. Not desktop/laptop, they don't even work on laptop.
I reported it in those offline "please rate the new ui" feedback popups, but it's clear that they have no idea who use their UIs.
I long for the late 2000s/early 2010s style of web administration UIs which tried to sorta-kinda look like a desktop app, they'd have things in like, tables trying to be like LVS_REPORT where you'd rarely have to scroll and rows were 14 pixels high etc.
Nowadays stuff like this is a sea of divs with an ocean of margins and padding. Or just straight up card-based layouts.
I reported it in those offline "please rate the new ui" feedback popups, but it's clear that they have no idea who use their UIs.