Hello,
I now realised my example is not without problems. If you could please help ... that would be great.

Blocks that have images (image block, social icons ... or are in figure element, video embeds etc.) Do NOT display correctly. Image block get repeated twice. Video embed (I tried youtube) and social icons do not display images. So I get empty containers.

Normal text blocks, headings, paragraphs, blockquotes and dinamic ones, recent posts for exmp .. work great.

I taught $blocks ... contains all gutenberg blocks other then gallery?

What am I missing?
Thanks so much.