What you share on the screenshot is actually expected. How your phone handles our UI elements is not controlled by us if you switch the text size, this is because iOS itself is adjusting the apps and all its elements, so unfortunately, there's not much we can do from our side.
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This is not expected. The text alignment is perfect for many other apps like Instagram, Netflix and Apple Music. The mini bar should either increase the height or the text size should be locked here so it won't be cropped. Both options are on app side not system side.