Akramul Hasan

This is a very straightforward tiny but useful plugin to add a block element that will help to create the Frequently Asked Questions (FAQ) section. It is very easy to use. After installing this plugin, a custom block item will be available, which will have a repeater pair of fields to add a question and answer. In the front end, it will generate a nice and smooth collapsible FAQ section.
<ul>
<li>No Extra library or script</li>
<li>Very lightweight and easy to use</li>
</ul>

WPFY FAQ Block

Gutenberg Block plugin for Frequently Asked Questions (FAQ) feature. Very straight forward to use. Just install and enjoy.

Vova Druzhaev

WordPress 5.0 introduces a block-based editor (codename “Gutenberg”) that offers a streamlined editing experience. 
The plugin provides in the block editor 2 types of spoilers:
<ul>
<li>Little Spoiler</li>
<li>Box spoiler</li>
</ul>
Little Spoiler – small spoiler for plain text.
Box spoiler – consists of 2 blocks: 
Opening spoiler (Box Spoiler Start) and closing spoiler (Box Spoiler End) 
Between them, you insert any block (or several block’s) with content that you want to hide.
In the frontend, the spoiler (accordion) opens with animation. 
In the editor you can choose the color design of the spoiler.
Ability to add new colors or replace a set of colors. See FAQ
Want to hide part of the publication? or make up the FAQ? – plugin is perfect for this
Check out all beauty and power of the plugin by watching this video: 
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/IrC1yVttMho?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
<h3>Requirements</h3>
PHP 7.4, 8.0+ recommended for better performance, WordPress 6.1
<h4>Translation</h4>
Available in English, Russian, Ukrainian, Spanish, German, Swedish, Dutch, Japanese, French, Italian, Norwegian, Portuguese, Chinese and more other languages in becoming.
<h4>Acknowledgements</h4>
Thanks to <a href="https://profiles.wordpress.org/nilovelez/" rel="nofollow ugc">Nilo Velez</a> for Spanish (Spain) translation approval. 
Thanks to <a href="https://profiles.wordpress.org/yordansoares/" rel="nofollow ugc">Yordan Soares</a> for Spanish (Venezuela) translation. 
Thanks to <a href="https://profiles.wordpress.org/tobifjellner/" rel="nofollow ugc">Tor-Bjorn Fjellner</a> for Swedish translation approval. 
Thanks to <a href="https://profiles.wordpress.org/psmits1567/" rel="nofollow ugc">Peter Smits</a> for Dutch translation approval. 
Thanks to <a href="https://profiles.wordpress.org/miccweb/" rel="nofollow ugc">miccweb</a> for Japanese translation approval. 
Thanks to <a href="https://profiles.wordpress.org/fxbenard/" rel="nofollow ugc">FX Bénard</a> for French (France) translation approval. 
Thanks to <a href="https://profiles.wordpress.org/darkavenger/" rel="nofollow ugc">Luisa Ravelli</a> and <a href="https://profiles.wordpress.org/aliceorru/" rel="nofollow ugc">aliceorru</a> for Italian translation approval. 
Thanks to <a href="https://profiles.wordpress.org/meinmycell/" rel="nofollow ugc">Eivind</a> for Norwegian (Nynorsk) translation approval. 
Thanks to <a href="https://profiles.wordpress.org/pedromendonca/" rel="nofollow ugc">Pedro Mendonça</a> for Portuguese (Portugal) translation approval. 
Thanks to <a href="https://profiles.wordpress.org/sergeykovalets/" rel="nofollow ugc">Sergey Kovalets</a> for Ukrainian translation. 
Thanks to <a href="https://profiles.wordpress.org/jensratzel/" rel="nofollow ugc">Jens Ratzel</a> for German translation. 
Thanks to <a href="https://profiles.wordpress.org/alexclassroom/" rel="nofollow ugc">Alex Lion</a> for Chinese (Taiwan) translation. 
Thanks to <a href="https://profiles.wordpress.org/nekojonez/" rel="nofollow ugc">Pieterjan Deneys</a> for Dutch (Belgium) translation.

OtFm Gutenberg Spoiler – (or FAQ) collapse block

The plugin provides in the block editor 2 types of spoilers. Need FAQ or Spoiler?

WPFY FAQ Block vs OtFm Gutenberg Spoiler – (or FAQ) collapse block