I observed traffic declining (about 20%) since May 5th for my English and Spanish communities, but not Portuguese community. Not sure if you see the similar trending. I would like to hear your findings for your community.
I guess the traffic declining is resulted by Google search algorithm May 2020 Core Update, which was released on May 5th.
This is an article Google’s May 2020 Core Update: The Winners and Losers in semrush.com. They also see that Online community is the category which has been negative impacted by Google’s May 2020 Core Update.