Funny thing though about Apple's propaganda and how fast their chips are supposed to be.
I am a long time iPhone user. I have had every iphone since the very first one and upgrade every year.
I also get the latest Android phones as well
I switch between a Note 20 Ultra and a iPhone Pro Max all the time. But I have yet to notice any speed difference in everyday use.
Agree about the speed in everyday use. In addition to my 12 Pro Max daily driver, I have a Pixel 4 XL and during casual, everyday use they feel equally fluid/snappy/buttery/<insert performance oriented adjective here>, etc. I think high end mobile CPUs are overkill for general performance needs and you won’t notice differences out of the box unless you start examining them with a fine tooth comb, so to speak.
Where I think you may see differences is if you try to push them to their absolute max, i.e. intensive gaming or heavy 4K video editing. Also, I think iPhone performance will fade less over time vs. some of the competition.
As far as ads go, the only ‘ads’ may be suggestions from Apple to use some of their services if you aren’t signed up but I’m honestly not sure what that experience is like as I already use most of them. I don’t use Apple News+ but have never seen an ad for it from Apple unless I go into the Apple News app and click that tab.