It is not new tab but what pages are open on restart.

This is where you customize new tab

https://imgur.com/a/Jzpq7Rs

This gives empty page https://chrome.google.com/webstore/detail/empty-new-tab-page...

Via https://answers.microsoft.com/en-us/microsoftedge/forum/all/...

It boggles the mind that you have to install an extension to get that simple basic feature that was present in all browsers before.

Also, for some reason, I setup a new machine today, with latest Win10 updates and the only section I have on that setting page is _New tab page_

The other two, _When Microsoft Edge starts_ and _Home button_ are not even there...

On the customize page you show, I don't even have a setting to turn off the bing search, quicklinks, etc.

This only shows about:blank in the first windows opened (after starting Edge) but still gives me the "new tab page" with the Microsoft search bar on it for each window and tab opened subsequently (with no way I know of to set this to about:blank...)