Sorry, just my feeling but I hate when UI lags behind my input needlessly. I want immediate feedback; get out of my way. This is especially true on page scroll.
What? You don't like pushing a button and waiting for it to register that you pushed it but it doesn't so you push it again, but somehow it did register and something popped up in it's place a millisecond before you pushed it again, and now you just pushed something that you didn't intend to?
And Teams. My favourite feature: if you are previewing a file[1] in a "meeting" (or channel or chat or whatever it is) and you accidentally double click the "close" button, the "initiate a call with everyone in the channel right now" button is what will receive the second click.
1: itself a dreadful and laggy interface compared to just opening the file in a functional native viewer.
When a website is loading dynamically, and the UI is being reshaped on the fly with unpredictable delays, so you move your mouse to the widget you want to interact with and, by the time you actually do something with it, enough of the page has loaded that your interaction hits a completely different widget! Fun!
Yes, I use the Internet Archive's Firefox add-on, why do you ask?
Why is this so consistent throughout the web? Do companies not realize it's a horrible experience or do they just not care? I mean, you see it on major players, Youtube, Twitch, Amazon, Walmart. A lot of cases it seems underhanded like they're trying to get you to click something you didn't intend to but why the heck is this the internet we have today?
I've always felt a bit betrayed by the fact that Firefox lets web sites hijack the scroll bar in the first place. Why!? What happened to being the "user agent"?
The user agent developers realised that over time the relative amount of users that will bother to customise their user agent has been out-grown by the amount of users that won't to such a great degree that the number of people in the former group can now be considered a rounding error.
In other words, people in general just don't care. And therefore, neither will the software.