This is what basically everyone else has done over the past decade. Google used to put a different background behind ads in its search (https://www.fsedigital.com/wp-content/uploads/2023/11/Google...). It made it really easy to tell what was an ad and skip over it quickly. Now it's a lot harder to quickly notice what's an ad and what isn't.
Sites used to have banner ads. Now they show posts that look exactly like the organic posts in your feed, just with a small "sponsored", "promoted", or "ad" mark somewhere. Half the time the post is large enough that it takes up my entire screen and the "sponsored" mark is below and off-screen.
If you go on Amazon, the "sponsored" text is much smaller and light gray rgb(87,89,89) while the product text is near-black rgb(15,17,17). They want to make the sponsored text less visible. Sometimes it's even unclear if the sponsored tag applies to a single product or a group of products.
It's shocking that Apple hasn't done this trick yet when everyone else started doing it years ago.