My iPhone 15PM is 89% at the 2-year mark I have about 348 cycle countMy 9 Pro XL is at 96% but I'm not seeing charge cycles listed anywhere (however, I am running the latest beta).
I must admit I'm not a battery tech expert, but a 4% reduction in a year seems pretty poor to me ... but what do I know. (I bet charging every night on my Pixel Stand 2 probably doesn't help, but I love the sunrise alarm clock feature)