How old is your Apple credit card in relation to the age of your credit? Assuming you don’t have that big of a limit and if it’s young compared to your average credit, closing that card, if you were to switch, would not hurt your credit score that much. If it is one of your older cards and/or you have a large limit on it, I would see if there’s a way to manage it through your Mac or iPad if you want to switch, as you would not want to close that line of credit and hurt your credit score.
Every other Apple product you have will still work with Android/Samsung, but it won’t be as seamless with some features not working (similar to how some Samsung products don’t work as well with iPhones), and you’ll have to find a workaround for AirDrop.
I’m still getting used to the new slide-down menu layout. Not the biggest fan since I’ve been used to it since 2020 when I got my S10+, but whatever. I’ll adjust. Not a deal breaker for me.
I think what’s more annoying is that scanning QR codes seems to take a bit longer now and have to keep the camera much more still. There’s no immediate feedback if it did scan other than the tiniest pop-up (used to vibrate stronger when it did scan and the link was easier to click). Under the old OneUI, it was almost too good at scanning QR codes as it would pick up the tiniest and blurry QR code even if I didn’t intend on scanning it, but this seemed like an overcorrection. But again, something I’ll just have to adjust to.