JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" class="zobrazitme" data-name="Martin">Zobrazit jen zprávy, kde je @Martin

<div class="chat-buble" data-name="Martin">
Adam: @Martin: Ahoj Jano
</div>

<div class="chat-buble" data-name="Petr">
Erika: @Petr: Ahoj Martine
</div>
<div class="chat-buble" data-name="Jirka">
Erika: @Jirka: Ahoj Jirko
</div>
<div class="chat-buble" data-name="Martin">
Adam: @Martin: 1
</div>
<div class="chat-buble" data-name="Martin">
Adam: @Martin: 2
</div>

JavaScript

$('.zobrazitme').on('click',function(e){
		$('.chat-buble').toggle();
    $('.chat-buble[data-name='+$(this).data('name')+']').show();
});