There are so many excellent YouTube videos that cover this. I don't think you will get any reasonable answers here.
I mean, they will be reasonable, but biased by what some people like.
At the end of the day, if you like the Samsung/Android ecosystem, and you haven't worked with Apple, you will be unhappy. Apple is far more into their own ecosystem and lacking any user-side changes completely. Android is just better at that. The flip side is that Apple tends to 'just work'.
Both cameras have amazing cameras, which is a big deal for a lot of people these days. So, it's not like one is great and one sucks. They are both great.
Both are fast, both are responsive, both have good memory, both cost similarly.
I think I might consider the Samsung if I was an upgrader... But I am not. I am rocking my iPhone 7 Plus from 2016 still. That's 6 or so years of ownership. I bought it new, shortly after release. I expect to keep it another year (despite my battery getting weak). It has had zero issues, except for the time I had it while Jet Skiing in a thunderstorm, but it held up and still works. So, for long term ownership and those who don't do or want upgrades often, Apple owns. By a mile.
Pick your poison, but I would say that you may be happier staying in your Android ecosystem. Apple doesn't offer any real improvement to your world in my (pretty worthless) opinion.