Sure, but a new battery isn’t that expensive

What do the v3 and v4 in the architectures mean?

This is a pity because MacBooks pro from ca 2013-2015 are great; cheap second hand because they’re out of support in macOS, good screens, excellent build quality and fast enough for anything you want to do with them.

I wouldn’t recommend macs in general. Anything with a touch bar (intels from ca 2018-19 and on) are tricky to get to run Linux at all, anything with apple silicon is very experimental, and the older models have Broadcom Wi-Fi that doesn’t ship with drivers on any distribution I know of.