...
I can see nothing similar when looking at the US and Canada (N. America) IPDV data, maybe the effect is later in the evolution of the virus' impact.
Aggregating the IPDV data monthly for China we see the following where we show the median together with the 25% and 75% going back to September 2017:
Looking at the percent packet loss for China there may be some evidence for a change in the 75%. Thus the impact is seen for a few sites. However, the climb started in August-September 2019 so it is doubtful it is related to COVID-19. This conclusion is confirmed by looking at the monthly aggregates.
For the US and Canada the losses are lower and usually 0% (typically >=90% of the targets show no losses), so instead we show the average maximum losses
...