Nice video. The impact of shading is very dependent on the design of the panel and the use of bypass diodes.
Many modern panels are arranged in 3 groups of cells with a bypass diode for each set. If one of the cells is shaded, it will impact the output of 1/3 of the panel, but the bypass diode allows the other 2/3 of the panel to continue to produce.
The grouping of cells is often 3 stripes along the long dimension of the panel:
View attachment 87870
If the panels are mounted with the long edge parallel to the ground, then as the sun hits the top zone in the morning they will start producing before the rest of the panel is in the sun, and as the next two zones get sun the production increases. In the evening, the cells lose the sun in reverse order.