eSNI is still in the draft stages, which is why Chrome has opted not to implement the draft until the standard is finalized or in a state it deems satisfactory[0]. Currently FF and CF implement draft.
There are also many hurdles Google has to consider when rolling out things like this that will break Enterprise deployments. Currently, DoH is completely inaccessible if the browser is "managed" (has Policies) at all, even if the disable DoH policy isn't set. I imagine the same will happen with eSNI.
There are also many hurdles Google has to consider when rolling out things like this that will break Enterprise deployments. Currently, DoH is completely inaccessible if the browser is "managed" (has Policies) at all, even if the disable DoH policy isn't set. I imagine the same will happen with eSNI.
0: https://crbug.com/908132#c7