How does zooming work in browsers and should text zooming be disabled?

Question

css

Can you please tell me how zoom works in browsers? During the experiments, I came to the conclusion that the width of the viewport changes there and therefore media queries work, and not just all elements are scaled.
If this is so, then the question arises, how critical is it to leave users the ability to change the scale of one text, risking breaking the layout and making your site look unflattering?

Answer 1

Not only the viewport changes, but also the pixel aspect ratio. So that everything was proportional. I would disable text scaling separately from the entire layout.

Answer 2

You might as well go crazy thinking that users might needlessly resize the browser window, breaking some layout constructs.