Nikola Ilic tries something different:
Essentially, the idea here is, since these four lines are not changing based on the numbers in the visual itself (they have constant value based on the slicer selection), to leverage the Constant line feature from the Analytics panel. Since no Constant line is available with Line and clustered column chart visual, let’s duplicate our visual and change its type to a regular Clustered column chart.
This is a good reminder that the best outcome isn’t always the most straightforward one.