How expedient is it to make a website responsive instead of responsive?

Question

Adaptive design

Layout question.
How expedient is it to make a site rubber-responsive, instead of just adaptive, if the design provides for 5 global breakpoints (large 4K screens, desktop, horizontal tablet, vertical tablet, mobile).
In the process of work, it turned out that the layout should be rubber, although before that it was made up for adaptive. It turns out that with the maximum use of percentages, there will still be at least 5 additional intermediate breakpoints

Answer 1

The advantage of your so-called "adaptive rubber" is that in those very breakpoints you will need to register corny fewer styles.
You understand: writing 30 styles for each breakpoint is worse than writing 5-10 styles for each.

Answer 2

the same success can be typeset for each pixel under browser compression. Stick to the inflection points, the rest should fall into the 2nd plan