Account > Settings > Communication > Marketing Preferences. Uncheck them all. A bit hidden, but it does work.
Perhaps they've fixed it since? I don't know because they've already burned my trust and they've done nothing to earn it back. Publicly acknowledging and apologizing for this would have been a way to start getting off my list of bad actors.
Even if they've made it possible to successfully turn those off deep in the menus now, whatever dreamed-up definition of "opted in" it's operating under is a tortured legalistic one that undermines the actual meaning and spirit of opting in.
And what’s worse is that the companies always seem to find a way to reset it to what they want quite frequently. One of their tricks is to reorganize permissions frequently so the ones that allow their spam to get through are always new.
As a web dev I see so many things that are lights-on-nobody-home about Meta. The Meta app on my phone generates numerous notifications, when I get one that says a game that looks really cool is 50% off, clicking on it doesn't send me to the landing page in the their app store, it sends me to the senseless home page of the app which seems to have the message "move on folks, nothing to see here"
The Instagram web application fails to load the first time I load it on my computer and I have to always reload. On either Facebook or Instagram I am always getting harassed by OnlyFans models that want me to engage with them... on the same platform where I engage with my sister-in-law.
When they say they are "careless people" I wonder if they are not just careless about sexual harassment and genocide but careless about making money because we're in a postcapitalist hell where Zuck could care less for making money for his shareholders but rather gets a squee from sitting behind Trump at his inauguration and hires people with $100M packages not because he wants them to work with him but because he doesn't want them to work with someone else.
1. your profile icon (bottom right) > hamburger menu (top right) > Notifications > Posts, stories, and comments > turn off ‘Posts suggested for you’ and ‘Notes’
2. on the same screen, set ‘First posts and stories’ to ‘From people I follow’
3. back out to Notifications > Live and reels > turn off ‘Recently uploaded reels’ and ‘Reels suggested for you’
This works for me, but if you’re still getting notifications you don’t want, you’ll have to figure out what category/type they fall under and turn that off.
I already had all but one of the settings you mentioned disabled, along with most of the others. I'll report back in a day or two.
It's a 600 MB app and you can log back in using only the iOS password manager. Reinstall it when you need to use it.