NVDA is now the most commonly used screen reader at 40%, followed by JAWS at 38%. Test with both. Learn more from AFixt. https://afixt.com/10-takeaways-from-the-webaim-screenreader-survey-10/
10 takeaways from the WebAIM Screenreader Survey #10 - AFixt

On February 22, 2024 our good friends at WebAIM released the 10th installment of their screen reader user survey. Jared Smith posted a great list of bullet points summarizing important data from the survey, but we’d like to add a few. Read the entire survey results at: https://webaim.org/projects/screenreadersurvey10

AFixt
@karlgroves As this survey is now a little over two years old, I suspect that NVDA's usage stats will be a bit higher when Webaim publishes the next set of survey results.
@karlgroves Aren't the percentages the other way round? JAWS 40.5%, NVDA 37.7%.