This tracking ticket will likely involve several issues and PRs in the Gutenberg repository to identify the best approach for the various usages of caching related to theme.json
and the theme_json
cache group.
I'm hopeful we can at least make some notable progress here for WordPress 6.3, so I'll milestone it for that release for now, acknowledging though that most of the work will need to happen in the Gutenberg repository, so it'll probably be a while until we get a PR here.
cc @oandregal @spacedmonkey