Lenovo offers old S3 on modern CPUs. Linux also supports the new sleep states. Get a better distro if you're having problems. This is a solved problem for like 5 years.
Don't worry the new ThinkPad batteries are just as good awful.
And... It's not actually the batteries, it's just the newer CPUs. If you want good battery life on intel you simply have to downlevel the CPU as much as possible or go back a few generations to an i5. My old x260 still gets 8 hours of coding on a charge. But my recent X1 is lucky to get 3 hours.
When the father starts boasting at conferences on video about using Whitehouse aid money to extort Ukraine into removing the prosecutor going after his son I think maybe the sons business dealings found on said laptop referencing including money for the father multiple times might be worth taking into account?
All this was on Fox. A lot. Maybe you weren't watching?