use simple BBCode in your comments 
atm follow tags available:
[b]bold[/b] 
[i]italic[/i] 
[u]underline[/u] 
[color=color]text[/color] example [color=FF6600]Text[/color]
list 
[ul] 
[li]number 1[/li] 
[li]number 2[/li] 
[li]number 3[/li] 
[/ul]
[url=http://www.google.com]Google[/url] 
[img=http://uri.to.pic][/img] (fix picsize)
(required wp-syntax) 
[code]your code[/code], 
optional with declaration of the language 
[code lang=”csharp”]your sample code[/code] (all available languages from wp-syntax possible)
<h3>Arbitrary section</h3>
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BBComments

Ngô Thắng IT

This plugin is synthetic utility for your WordPress site:
<ul>
<li>Shortcode mark ID apply for anchor text</li>
<li>BBCode</li>
<li>Include custom post type for AddQuickTag plugin settings</li>
<li>Exit pop-up each per post, page and custom post type</li>
<li>Welcome pop-up each per post, page and custom post type</li>
<li>Remove base slug from custom post type</li>
<li>Replace the Block Editor with the Classic Editor</li>
<li>Enables the classic widgets settings screens in Appearance – Widgets</li>
<li>SMTP Settings</li>
<li>Shortcodes: [currentyear], [currentmonth] … support YoastSEO, RankMath</li>
<li>Insert head, body and footer scripts</li>
</ul>

BBComments vs WP MultiTasking – WP Utilities