I’m not sure of the relative timing but the Google policy of “we support the last two major releases of the main browsers” also really helped. As a web develop

I’m not sure of the relative timing but the Google policy of “we support the last two major releases of the main browsers” also really helped. As a web developer at the time, I could put that in my proposals, saying “it’s the standard Google browser support policy”. At which point clients signed off on not needing legacy browser support.