Settings:
Privacy and Security
Search Permissions
Cloud content search - Disable Microsoft Account Off
Cloud content search - Disable Work School Account Off
scroll down 
More settings
Show search highlights - Off
Related settings - Windows privacy options
Privacy and Security - General
Let apps - off
Let websites - off
Let Windows - off
Show me suggested - off
Open Edge
Settings
edge://settings
Privacy
edge://settings/privacy
scroll to the very bottom
Address bar and search
Search engine used in the address bar
Change to Google
regedit
Machine
Software
Policies
Microsoft
New key
Edge
New DWord32
HubsSidebarEnabled
0
Edge newtab
edge://policy
Reload Policy