I feel like this comment has short memory. Battery life on intel macbooks was terrible ime. Frequently it would drain completely while the lid was closed overnight. Always had to keep it plugged in. Of course Apple silicon is fantastic and nothing beats it now.

On the Linux side, I've had great luck with AMD + recent kernels. I get around 6 hours now on my Thinkpad X13 gen 2 which is good enough for me.