Panels in parallel will have the
Current of all panel added together, while the
Voltage appears to the Controller as the Voltage of the lowest panel (i.e., the one in shade, if they are under different amounts of shade).
Panels in Series have the
Voltage of all panels added together, but the Current appears to the Controller as the current of the lowest-performing panel (the one in the most shade).
Your configuration is excellent, and has better performance under different amount of shading. In shade, current moves down much more than voltage does - and Series panels behave with the performance of the most shaded panel. Series wiring can have an advantage, however, in allowing for smaller wires. Many configurations with more panels combine the wiring types, e.g., 2x2 or 2x3, but that will require that the number of panels in each parallel string (2 panels, 3 panels), be the same, so that the Controller's received Voltage is the same from each of the Parallel Strings.
With two 'parallel' strings of 'series' panels, you must start from an even number of panels. I personally have an odd number of panels, and must therefore use all parallel (lots of current. big wires) or all Series (lots of Voltage, more sensitivity to shade). My panels are in Series, creating around 85 Volts (which would be a bit too high for your Victron, but it's OK on my controller).
If run in Series, your two panels (40.8 Voc) would be on the high side of your Victron's capability (which I would personally configure at no more than 80% of the rated maximum voltage). So parallel has the best safety margin and the best resistance to uneven shade, you're doing the right thing.