What if you used Container Units for... everything?
Briefly

Container units' scaling is not straightforward; queries can lead to awkward outcomes and unsuitability for various design elements.
Styling elements directly with container queries poses challenges, as the units might reference different containers, affecting properties like border-radius unpredictably.
Using only container units for font-size can lead to text being either too big or too small, posing usability and accessibility issues that need careful attention and adjustments.
Read at Frontendmasters
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