This is a workaround for sites experiencing any issues with the ability introduced in WordPress 6.9 to load block styles on demand in classic themes. The known issues have been fixed during the 7.0 release cycle with the following commits: r61076: Script Loader: Fall back to hoisting late-printed styles to end of HEAD if wp-block-library is not enqueued. r61122: Script Loader: Load block styles on demand in classic themes even when wp-block-styles support is absent. r61174: Script Loader: Improve hoisted stylesheet ordering (in classic themes) to preserve CSS cascade. r61554: Script Loader: Pr...
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