
Something here might help.
https://learn.microsoft.com/en-us/deployedge/microsoft-edge-sysupdate-access-old-edge
--please don't forget to Accept as answer if the reply is helpful--
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As A web developer I need access to the classic Edge browser. How do I test my website on Classic Edeg?
Something here might help.
https://learn.microsoft.com/en-us/deployedge/microsoft-edge-sysupdate-access-old-edge
--please don't forget to Accept as answer if the reply is helpful--
First, you need to check your OS version. If you're using OS version before Windows 10 version 20H2, you can access Edge Legacy after installing the new version of Microsoft Edge. You can refer to these steps to enable Microsoft Edge side-by-side browser experience.
If you're using Windows 10 version 20H2 or newer, the side-by-side experience is not supported. So you can't access Edge Legacy any more in Windows 10 20H2+. In this situation, if you want to test on Edge Legacy, you can use some products like BrowserStack or use a VM with an old version of Windows.
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Regards,
Yu Zhou