Header

Now paste the content as a Custom HTML block and then Convert to Blocks

Requires:

Block Theme
<!-- wp:group {"align":"full","style":{"spacing":{"padding":{"top":"20px","right":"var:preset|spacing|40","bottom":"20px","left":"var:preset|spacing|40"},"margin":{"top":"0","bottom":"0"},"blockGap":"var:preset|spacing|30"},"dimensions":{"minHeight":""},"elements":{"link":{"color":{"text":"var:preset|color|base"}}}},"backgroundColor":"contrast","textColor":"base","className":"has-background-color","layout":{"type":"flex","orientation":"vertical","justifyContent":"stretch","verticalAlignment":"center"}} -->

<div class="wp-block-group alignfull has-background-color has-base-color has-contrast-background-color has-text-color has-background has-link-color" style="margin-top:0;margin-bottom:0;padding-top:20px;padding-right:var(--wp--preset--spacing--40);padding-bottom:20px;padding-left:var(--wp--preset--spacing--40)"><!-- wp:group {"align":"wide","style":{"border":{"top":{"width":"0px","style":"none"},"right":[],"bottom":[],"left":[]}},"layout":{"type":"flex","justifyContent":"space-between","flexWrap":"wrap"}} -->
<div class="wp-block-group alignwide" style="border-top-style:none;border-top-width:0px"><!-- wp:group {"style":{"spacing":{"blockGap":"15px"}},"layout":{"type":"flex","flexWrap":"nowrap"}} -->
<div class="wp-block-group"><!-- wp:site-logo {"width":60,"style":{"layout":{"selfStretch":"fixed","flexSize":"60px"}}} /--></div>
<!-- /wp:group -->

<!-- wp:group {"layout":{"type":"flex","flexWrap":"nowrap"}} -->
<div class="wp-block-group"><!-- wp:navigation {"ref":5,"textColor":"black"} /-->

<!-- wp:buttons {"layout":{"type":"flex","justifyContent":"right"}} -->
<div class="wp-block-buttons"><!-- wp:button {"textColor":"white","style":{"typography":{"fontSize":"16px","fontStyle":"normal","fontWeight":"500"},"elements":{"link":{"color":{"text":"var:preset|color|white"}}},"border":{"radius":"6px"}}} -->
<div class="wp-block-button has-custom-font-size" style="font-size:16px;font-style:normal;font-weight:500"><a class="wp-block-button__link has-white-color has-text-color has-link-color wp-element-button" style="border-radius:6px">Schedule Call</a></div>
<!-- /wp:button --></div>
<!-- /wp:buttons --></div>
<!-- /wp:group --></div>
<!-- /wp:group --></div>
<!-- /wp:group -->