Container Queries are officially in the CSS specification process.
You can now play with an early prototype of container queries.
What the CSS Working Group is already working on.
A CSS feature query as fallback for CSS container queries.
“Large companies find HTML & CSS frustrating ‘at scale’ because the web is a fundamentally anti-capitalist mashup art experiment, designed to give consumers all the power.”
There is a new option to solve tricky problems in CSS.
Whatever it looks like, it will take a lot of work to get there.