I concur. On my Thinkpad T14 gen2, I have accepted I maybe get 3h of battery on a good day.
The battery is half the size of the lastest MacBook sure. But much less than half the battery life.
I don't have suspend issues. I am probably lucky.
I wouldn't code on anything else than Linux. But I got myself to enjoy CAD work on my gaming computer running windows. Not that windows is great. It's horrible. But because on windows the GPU and mouse acceleration works flawlessly and feels like an extension of my mind. On Linux somehow it is not as smooth. Mac feels sluggish too. As if there is some lag? But moving the mouse on windows feels just right (and yes I tried same hardware on windows / Linux).
I hate macos. It's buggy and slow. The touchpad is stupidly big. But precision is fantastic. It's an insult to everybody else really. Thinkpad touchpad is an insult of insult. People designing that crap should go to jail for the amount of time they waste on humanity.