I have had several Apple devices over the last 20 years and every single one has had the occasional sleep/wake issues. Yes it is generally better but I would stop short of saying Apple has mastered it. I've observed wake failures on all Apple laptops I've owned -- say 1 in every 50 or so wakes will fail. I had one Apple laptop in particular struggle to stay in a sleep state overnight to the point it'd often be completely flat the next morning requiring a cold boot. YMMV but Apple hasn't completely solved the sleep/wake issues in my experience. My Lenovo laptops under Linux and Windows achieve sleep/wake reliability almost as good as Apple/macOS IMHO.

Because they own the now hardware, and MacOS iOS run exclusively on their hardware

Source: I work on windows power management and I know system engineers at apple.

That's the often repeated argument. But as a counter point you have the Google Pixel. Google owns the hardware, even the SoC, and the software. And yet, battery is still poorer than third party Android phone manufacturers. And let's not even compare to Apple.

So controlling the entire stack isn't enough. There has to be a desire to do better, as well as technical competency.

Dunno, I have a Pixel 8 Pro, battery lasts all day unless I play demanding games (which nowadays is never).

third-party manufacturers cheat for battery life benchmarks and they don't even get that much better battery life. the current state of the pixel phones allows me all day battery life without such headaches.

in my experience with OnePlus, it aggressively kills and/or throttles applications that you want to be running in the background (e.g. fitness trackers or even audio players) even when you put them on the battery allowlist.

at the same time, my iPad just randomly decides to drain all of its battery even when it's been sitting unused without any apps installed. I don't have this problem on Pixel devices. (you do get this problem as soon as you install some misbehaving apps but that's something you've done to yourself)

It's mostly unrelated to the platform "mastering" sleep/wakeup, those work really well on Linux as used in Android.

I still have i9 2018 that will drain overnight in sleep mode, and that sleep discharge put the most battery cycles on the device. I think they only fixed it when they ditched the x86 ecosystem.

That and app store fees

Pretty much all smartphones can do this.

*Recent. It took many years for smartphones to catch up with iPhones in terms of energy drain. Even today iPhones have the smallest batteries across their competitors.

Battery life has nothing to do with suspend/resume reliability.

Every smartphone does suspend/resume thousands of times each day, it has to be nearly 100% reliable feature and it is, otherwise users would be majorly pissed off.

I think there was a little more to it

I think it could be argued that the Mac contributes nearly nothing to Apple's current trillion-dollar valuation. If the Mac was spun out into it's own business it would be lucky to crest a $100B market cap.