It’s worth pointing out that due to the x1 probe there’s an input capacitance of about 50-60 pF, which would result in a 200 kHz low-pass for opening and dampen high speed oscillations in general. You can see this in the graphs with the rising transitions being slightly rounded. MCUs have much lower capacitance in their pins, so reality would tend to look even messier than this, especially zoomed in.