Google is not blocking edge, or at least we have no proof of that. In this instance I think it's safe to assume an oversight based on naive user agent whitelisting.

And before I get accused of shilling, I hate chrome and despise Google with a passion.

As I responded to a comment just below this one, somebody over on reddit tested different user agents: https://www.reddit.com/r/google/comments/btysl9/google_have_....

It seems pretty clear from the fact that nonsense user agents like "TotallyNotMicrosoft" and "IE6" worked, that there is a blacklist, not a whitelist.

Not true.... https://twitter.com/ericlaw/status/1123993553070448651?s=20

Somebody over on reddit tested different user agents: https://www.reddit.com/r/google/comments/btysl9/google_have_....

It seems pretty clear from the fact that nonsense user agents like "TotallyNotMicrosoft" and "IE6" worked, that there is a blacklist, not a whitelist.