Are tips of the day, like in 90s Microsoft products, on application start an effective and non-deleterious way of improving discoverability?

I remember from using 90s and I think also 2000s versions of software, mostly from Microsoft that there would often be a window (like the screenshotted one, although with non-joke advice), that would tell the user about some feature of th…
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Is it an anti pattern to have two UI input element for the same value?

Does having two different UI elements for the same input value considered an anti pattern? Both inputs represent the same thing, changing the value of one will update the other.
For example, I wanted to have a slider that the user can sele…