Almost everytime Microsoft update Windows or Edge they change your search and home page settings. Not only is this annoying but they make it worse by changing where these settings are with almost every version of Edge. The following instructions are for the latest version as at Aug 2020
To Change Your Home Page
Open Microsoft Edge
Click the three menu dots (top right)
Click Settings
Click On Startup
Click the dot into Open a specific page or pages
Click Add a new page
Type in your desired home page (eg: google.co.nz)
Press Add
Close and re-open Edge
You can have more than one tab open everytime you open microsoft Edge. Add more pages using the instructions above
Note! The more tabs you set to open the slower Edge will open and the slower the pages will be to load
To Change Your Search Engine
Open Edge
Click the three menu dots at the top right
Click Privacy and services
Scroll down to the bottom in the right panel
Click Address Bar
Click the drop down and select your search engine choice
To remove or add search engines click Manage search engines