Some time ago, Microsoft released Update KB4576754 for Windows 10 users 2004, 1909, 1903 and 1809, this update is automatically present for those whose devices have not previously installed Edge Chromium.
Unlike the KB4559309 update which also brought Edge Chromium a few months ago, this KB4576754 update reportedly did not interfere with the Windows 10 experience when it finished restarting, where previously we as users had to setup edge chromium compulsorily and couldn’t be missed.
Update KB4559309
Update KB4576754 via Techdows
Update KB4576754 also seems to bring the latest Edge Chromium version 84.522.68, and just like before the Edge Chromium you get cannot be uninstalled manually via App & Features in Settings, but users can still uninstall it using Remove KB4576754 update manually via Programs and Features> View Installed updates.
Keep in mind once again that this update is only available for those who haven’t installed Edge Chromium before, so if you are a Windows 10 2004, 1909, 1903 and 1809 user who has never installed Edge Chromium, be ready to get this update.