[vetinari]

This was always the case: MS Office used its own widgets since about 1995 on both platforms; Adobe has their own UI controls, and even Apple used custom/dark themes and controls for their pro apps since about forever.

The current state of Apple App Store app is just the cherry on the top.

[ogre_codes]

I don’t use Adobe, so for me, the big culprit has always been MS Office and I’ve been able to mostly avoid it for years. I’m looking more at Slack, VSCode, and other “Essential” apps which have displaced Mac Native tools like BBEdit and if you squint hard, Adium.