Why did UI's turn from practical to form over function?
E.g. Office 2003 vs Microsoft 365
It's easy to remember where everything is with a toolbar and menu bar, which allows access to any option in one click and hold move.
Seriously? Big ribbon and massive padding wasting space, as well as the ribbon being clunky to use.
Why did this happen?
The cynical but probably truer than we'd like to admit answer is "middle managers who bring nothing to the table but need to 'make big changes' to justify that promotion they've been chasing."
Source: Pretty much all corporations at this point have these people, my sister's ex-husband is one at Google.
Change for the sake of change is so dumb. I'm tired of pointless UI changes every so many years because some middle manager and their designers need to wow some dumb exec to get a promotion and they do so just by rearranging all the existing functionality because the product itself is already a complete solution that doesn't actually need a new version. Sadly, this mentality even creeps into FOSS spaces. Canonical and Ubuntu wanting to reinvent the wheel with Unity, Mir, Snap, etc. GNOME radically changing their UI all the time.
Complete side note, I saw your pfp and checked your profile to confirm my suspicions. Thank you for your work on OpenRGB! It's been a great tool for managing the LEDs on my computer.