https://arstechnica.com/information-technology/2020/03/broadband-speeds-fall-in-dozens-of-big-us-cities-during-pandemic/

Home-Internet download speeds have fallen during the COVID-19 pandemic in dozens of the biggest US cities as millions of Americans stay home due to school and business closures. However, typical download speeds remain high enough to support normal broadband-usage patterns, with the vast majority of cities still above the Federal Communications Commission's 25Mbps standard.

In 88 of the 200 most populous US cities, Internet users "experienced some degree of network degradation over the past week compared to the 10 weeks prior," BroadbandNow said in a report released Wednesday. Of those, 27 cities suffered speed reductions of at least 20 percent.