I run a T14s with nixos. For me battery is never ever a problem, sure it runs out if I fall asleep and YouTube is autoplaying. But it lasts almost an entire workday in the couch, it's usbc powered so I can charge it a bit with my powerbank.

Just clearing some FUD if people consider Linux bad for everyday use, that's mostly shit if you run Wayland and like sharing your screen (Jitsi or obs+virtualcam works well too).

Edit: remember Android runs on the Linux kernel-ish