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Are there ways to make the Gutenberg editor wider? And the HTML-block higher?

I am new to the Gutenberg editor. Previously I used the Classic editor (plugin) when editing WordPress. The editor area “resized” according to the browser window.
With the Gutenberg approach I get a very narrow area to edit in. When I use the HTML-block all I get is a 890px wide and 250px high area with scrollbars. I feel claustrophobic!

Are there some way to get around this?

Similar question but with no good answers: Why is the new Gutenberg editor so narrow, and how to make it wider?