The International Association of Accessibility Professionals (IAAP) has launched a survey evaluating how COVID-19 is impacting digital accessibility: https://www.surveymonkey.com/r/VDX725K.
Also Maynooth University has launched a survey under the title: The Impact of COVID-19 on Assistive Technology Use and Provision Survey. Full details of the survey and a consent form are contained within the survey itself. The survey is available in English, French, Spanish, Russian, Mandarin Chinese, and Arabic. The results will be shared publicly.