GPD Pocket 4 Speaker DSP: Configuring PipeWire so laptop speakers sound better

It depends on what you're doing, but the SoC is relatively powerful for it's size, and the battery is relatively undersized compared to the chip. Anywhere from 2-6 hours depending on what you're doing, generally.

I manage to get decent battery life, somewhere around four hours in general usage (not gaming or compiling) with TLP and disabling boost on battery, along with a few other small tweaks.