Matt,
Things have been acting slowly/strangely for us as well this morning. Survey123 is not allowing to submit surveys, and some web maps and dashboards aren't loading properly.
There was an issue logged in the health dashboard yesterday, but I don't see anything for today. Perhaps this will be brought to their attention soon if it is a universal issue going on. https://status.arcgis.com/
Fingers crossed!!
EDIT: I submitted a case with Esri support to make them aware of this issue
Best,
Katie
“The goal is not simply to ‘work hard, play hard.’ The goal is to make our work and our play indistinguishable.”
- Simon Sinek