Their problem until now was that their release cycle didn't allow catching up with Chrome. They could only change Edge during the feature release cycle going half a year or more.
Then they made a change and Google broke the change (happened with Youtube, Google put another transparent Div over everything or something, which broke Edge's hardware acceleration).
They've kinda given up trying to catch up
With that sort of release cycle they had no chance to keep up, and they've asked for their failure.
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