Hi @sns ,
1.In classic experience, you can use open the page in IE mode to use “Open with Explorer”. For the specific steps, please refer to the following article. After enabling IE mode, you can use the "open with explorer view" option.
References to third-party article: How to use Internet Explorer mode in the Microsoft Edge browser for Windows 11
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2.In the modern view, if you are not clear about how to configure group policy to enable this “Open with Explorer”. It is recommended to open a new thread with the tag ms-edge about configuring group policy related to Edge for better help.
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