what it did work for me, was this: by the way, I asked DeepSeek:

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    
    # Redirigir URLs que contienen index.php
    RewriteCond %{THE_REQUEST} ^GET.*index\.php [NC]
    RewriteRule (.*?)index\.php/*(.*) /$1$2 [R=301,NE,L]
    
    # Reescribir todas las demás solicitudes
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)$ index.php/$1 [L]
</IfModule>