minimumTouchTargetSize

Reserves at least 44.dp in size to disambiguate touch interactions if the element would measure smaller.

https://m3.material.io/foundations/accessible-design/accessibility-basics#28032e45-c598-450c-b355-f9fe737b1cd8

This uses the Spark recommended minimum size of 44.dp x 44.dp, which may not be the same as the system enforced minimum size. The minimum clickable / touch target size (44.dp by default) is controlled by the system via ViewConfiguration and automatically expanded at the touch input layer.

This modifier is not needed for touch target expansion to happen. It only affects layout, to make sure there is adequate space for touch target expansion.