The biggest problem is that it drains 1-2% per hour in deep sleep on Linux. That means if you leave it asleep in your bag after work it will be between 15-30% lower when you go to use it the next morning. People on the forums[0] are even seeing up to a 4% per hour drain. I don't know what is common with other laptops but I can't say I've ever had to think about sleep drain before.
I've just ordered the 12th gen board upgrade with fingers crossed it helps but really consider going back to a ThinkPad X1 Carbon.
0: https://community.frame.work/t/linux-battery-life-tuning/666...