imagico left a comment (openstreetmap/openstreetmap-website#6618)

> What I’m unclear about is whether the current main map (or the dashboard map 
> prior to #6504) steers clear of the concern you’ve raised.

Yes, i have never seen - or have heard others report - similar issues with the 
main map about that.  With the zoom animation i am personally undecided if i 
prefer with or without (if you want to compare for yourself - a non-animated 
zoom can, for example be found on [bbbike map 
compare](https://mc.bbbike.org/mc/?lon=7.874081&lat=50.549012&zoom=6&num=1&mt0=mapnik))
  How this feels depends a bit on animation speed vs. tile loading bandwidth.  
But the point can definitely be made that the animation can make zooming more 
intuitive.

For the situation of viewing low resolution tiles on a high resolution (small 
pixel size) display the OSM-Carto guidelines do not provide a definitive 
suggestion.  Bullet points 3 and 4 cannot be met simultaneously in that case.  
That is a deliberate choice - we have no suggestion in that case (other than to 
use higher resolution tiles obviously).  I personally like having the choice 
between native display or upscaling to design scale - and on Linux at least you 
can configure that in the desktop settings.

> Even if we only snap zoom levels with the Standard layer, we would be trading 
> off the user experience. For better or worse, computer users these days are 
> accustomed to the interface tracking their gestures continuously. They will 
> be jarred by any discrete transition, no matter the cause.

My experience with people reading interactive maps is actually the opposite.  A 
limited set of discrete scales can make maps much more accessible and the 
inability to easily reproduce a previous viewing situation precisely in scale 
can be extremely irritating.  And of course cartography is inherently discrete 
anyway - attempts to continuously transit between showing something and not 
showing something are rarely working out well.  But that is a discussion on map 
design and that is definitely not something for this issue tracker.


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