in Layout 23 they’ve lowered the quality of the defalut low (and medium?) qualities so raster images look more pixelated BUT are way lighter to work with.
on a single page - single viewport you won’t feel a difference, on a multi-page multi-viewport, you would.
yep, because though it retained the render “degree” you had (low, medium…) they technically created a new low (something like 10dpi instead of the old 30 dpi resolution)