With the ArcGauge component, when you set the rangeLineCap to something other than 'butt' (ie: round or square), the indicator does not line up with the tick lines. This leads to misleading values. Please look at this StackBlitz:
This will show the comparison between round and butt rangeLineCaps.
From the screenshot as well, the ArcGauge on the right looks like the value is greater than 0, resulting in the user being mislead on the result.