Totally weird!
I've just opened Edge (for the first time in ages) and searched for 'google maps', using the default search engine (i.e. Bing). I get the expected link and the expected result when I click on it, without any redirect.
Given that you've already run a malware scan (which would normally have been my first suggestion), all I can think of is to try restoring Edge to its 'out of the box' state
https://malwaretips.com/blogs/reset-microsoft-edge/
and/or configuring Edge to use a different search engine, such as Google:
https://support.microsoft.com/en-us/microsoft-edge/change-your-default-search-engine-in-microsoft-edge-cccaf51c-a4df-a43e-8036-d4d2c527a791
Oh, hang on a moment though . . . after typing out the foregoing text, I've re-read your post and paid greater heed to the bit about your grandchild's schoolwork. It seems that Edge isn't redirecting to a purely random site but to one that it already knows about in some way. So the first step then (ahead of what I've suggested above) might be trying to force Edge to 'forget' about the Glow website by clearing its cache:
https://www.bitdefender.com/consumer/support/answer/2010/