In a few days, it won't again. Apple wants you to use Safari, so they deliberately break the simple function of email links to "gently" persuade you to use Safari.
I think they are just being self-serving fools. I am a developer and need to use both Chrome and Safari. I need links to open in Chrome but I don't get to have that luxury because, even though I've loyally overpaid to be an Apple customer, it's not up to me. I need to respect the random preferences of the children in charge at Apple and simply stay away from Google.
The last thing this world needs is anything reasonable or useful.