Below is screen reader advisories for Version 20H2:
Highlights of Version 20H2 include Edge browser replacement and more subtle changes to Start menu.
Screen reader compatibility: any screen reader compatible with Version 1909 or later will work… Actually, no. You will need a screen reader release that supports recent Chrome and Edge releases as Chromium Edge will replace classic Edge from now on. Note that Edge requirement was a recommendation last time screen reader advisories were sent (May 2020); now it is a requirement.
As always, these advisories are subject to updates from screen reader vendors (their advisories override forum advisories).