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So I found out there is another chart type of scatter. This is typically used to only points on axes chart, but it can configured to have lines between the points. Also, if marking the points on graph is unneccessary there is a configuration option to set those points’ radius to 0 and this makes those hidden.
https://www.chartjs.org/docs/latest/charts/scatter.html#scatter-chart
Source:stackexchange.com