I'm not sure if this is a known issue, a bug, or [not] working as intended.
When I set up a line layer to have marker symbols at its end nodes, it looks great as a feature layer. But when I create a vector tile package from it, the tile packaging seems to ignore the marker placement parameters and simply distributes markers along the line instead.
The feature layer symbology correctly displays the (red) line with markers only at its ends.
Vector tile renders the (red) line with points distributed along it:

Here is how the feature layer is symbolized in ArcGIS Pro:


Is there something I should be doing differently to get the vector tiles to only show the marker symbols at the end nodes?