Is the new @font-face descriptor 'size-adjust' good to ship now?

Hi,

Chromium is planning to ship the newly resolved 'size-adjust' [1] with M91
(branching on April 8) as a major tool to tackle layout shifts caused by
web fonts.

It looks to me that we already have a very clear idea how this feature
should behave. The remaining issues do not seem to block shipping:

- Name bikeshedding [2]. We can ship it as 'size-adjust' for now, and if
needed, we can change its name before May 25 when M91 reaches Stable Release

- Interaction with font-size-adjust [3], which we seem to have consensus on
but still awaits a resolution

- Other detailed editorial issues [4][3][4], which do not affect the
behavior

Can I get an official position of whether this new feature is mature enough
to ship, so that I can start a Blink Intent-to-Ship process? Thanks!

[1] https://github.com/w3c/csswg-drafts/issues/6075
[2] https://github.com/w3c/csswg-drafts/issues/6114
[3] https://github.com/w3c/csswg-drafts/issues/6128
[4] https://github.com/w3c/csswg-drafts/issues/6112
[5] https://github.com/w3c/csswg-drafts/issues/6110
[6] https://github.com/w3c/csswg-drafts/issues/6111

Regards,
Xiaocheng