As someone who runs a website not that different from the ones mentioned in form-factor—I believe that a lot of animations are not worth it in a lot of cases.
If I want to use the site every day, as opposed to a landing page which should perhaps tell a precise story to a first-time user, I really want to optimize for usability and performance. Animations can be brutal on both fronts.
In an ideal world, animations are used tastefully in a few places but not reached for just to "spice things up".
Thank you for your contribution. I agree, animations are ok only in a landing page.
Now I'm wondering why there's a so massive use in Android applications
Not sure exactly why, but it seems that Material design and Google encourage them.
I do not mind animations in mobile apps.
Could it be that we've been "trained" to expect animations in mobile apps and frown upon them on desktop web sites?
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