Great suggestion! I will work on this for the next update.
OK, the new Remove global styles (inline CSS) setting is now available in version 2.5.0.
Note that this only dequeues the global-styles CSS inserted by the Block Editor; your theme or plugins may insert their own inline CSS, and this is not removed. (And, I would argue, shouldn’t be removed by this plugin because it only modifies WP core behavior, and also because the inline CSS inserted by the theme/plugins may not be Block Editor-related, and may be essential to proper functionality.)
Sorry, your plugin doesn’t remove any global styles. Are you sure it works in a child theme?
I have just confirmed that it does work as it should. With the setting turned off, there will be a block of CSS in your HTML that begins with this tag:
<style id='global-styles-inline-css' type='text/css'>
With the setting turned on, that block goes away. Note that some plugins or themes may insert their own additional inline CSS; No Nonsense does not have a way of checking for other inline CSS, and I do not intend to add that as a feature since it would most likely break the appearance of those plugins/themes.
