The Thinkpad X9 15p Aura Edition has a slightly larger ~80Whr battery.
The battery size is also not a consumer-facing spec, they only care about size/weight/performance. If Lenovo can fit a bigger battery into their chassis and it's roughly the same exterior size/weight as a MacBook Pro, this isn't some kind of win for Apple where we can declare their victory because their chip is more power efficient. The user cares about the size/weight/performance/battery life.
As of the M5, MacBook systems are not on the top of those charts. I suspect that the M6 may help put Apple back on top, but the overarching point is that Panther Lake is highly competitive and that Intel is now with in a year of Apple in terms of mainstream laptop chips.
I.e., it's not like 2020 where an M1 MacBook Air is such a compelling choice because it's faster than an i9 Intel and gets double the battery life with no fan.