I will say for me, the excitement and enjoyment continue to come from having all my Apple products work in tandem with one another. It was the case then, it continues to be the case today.
I continue to use my iPad in the classroom, mirrored to my Apple TV. The projector in my class recently blew a lamp, and a temporary one was brought in and parked in the middle of the classroom. Not the most accessible of locations for one to plug their laptop in to, but I connected my Apple TV to it and remain free to move around the classroom.
I still enjoy using my iPad both in and outside of the class. Be it doubling as a visualiser, recording screencasts, editing videos in lumafusion, annotating in Notability, presenting notes during meetings, reading email or just light gaming, it's still the ideal blend of battery life, portability and ease of use for me. Apple Pencil is great. Loved the Smart Keyboard, shame that it wasn't all that durable for me, and I just couldn't justify getting a new one every year.
My iPhone 13 pro max has excellent battery life. No complaints there.
Same with my M1 MBA. Great performance, long battery life, little heat (ideal for zooming).
My calendar is on my Apple Watch (which I refer to via the Siri watch face). Lots of little conveniences (Apple Pay, Siri, notifications, fitness tracking, 1password complication, music controls).
A bit mixed on AirPods. I find that my AirPods 3 are still the most compact and comfortable, but noise cancelling has its uses (but having rubber tips in your ears all day just isn't as comfy). I switch between the two.
Apple TVs need no introduction. I have all my streaming services on them, do some light gaming as well. They don't really break the bank.
I have a couple of AirTags lying around. Haven't really had to use them yet.
Then there's the integrations, like airdropping files amongst my various devices, iCloud tabs, iCloud photo library, universal control, being able to share app purchases between my iOS devices, having access to the best apps in the platform, that sort of thing.
I am enjoying TV+ and Apple Music as well.
I will say that Apple's product is their ecosystem.