The ads there are usually fairly innocuous (i.e. not disruptive, not flashing auto play vids etc, they just look like another news item and you can just scroll past them like other news articles you're not interested in), but I have actually found them useful. I am wearing a T-shirt right now in fact that was advertised to me a week or two ago as "on sale" for £8 (eight) and which I clicked through and purchased. There have been one or two other examples of things there that actually have been useful or at least interesting to me right now. So they actually have been useful/helpful in that regard.
So I am a bit conflicted here. It is no cost to me to click on the ad, and I bought some things that I use but would probably have not got otherwise. Am I being manipulated to part with my money? I dunno. Would I have bought a £8 t-shirt anyway if I was just in a shop and saw it? Maybe. Was the ad actually quite well targeted and appropriate? In this case yes.
I think on balance I would say those news feed ads are acceptable to me. I have problems where it is totally irrelevant and disruptive. Hopefully the AI mode ones will be similar to the news feed ones. I would be pretty upset if the ad content was directly worded into the response.