Mail app brand logos missing on my iPhone 16 Pro Max?

I have the Mail app with the latest iOS on my iPhone 16 Pro Max. But I don’t see the logos of companies in the Mail app. I don’t understand why, because I see online that other people do see the brand logos. Companies like DHL and so on—I don’t see any. Actually, I don’t see the logo of any company. Am I doing something wrong, or does this not work in the Netherlands? I can’t imagine that. My phone is set to English (UK) and works with Apple Intelligence.

here is a screenshot where you can see that it works for someone else (from a website) this is how I want it

and here is a screenshot of my phone. Where it doesn’t work.

can someone please help?

[Re-Titled by Moderator]