I installed EndeavourOS on my 2015 MBP 13 and it's pretty great. Machine feels awesome. Had to have Codex patch a few small things (e.g. the fan thresholds, some power management stuff) and the speakers sound atrocious but it's super fast and extremely usable.
Replaced the battery with a $50 replacement one from Amazon myself, and I get like 5-6 hours of usage.
Replaced the battery with a $50 replacement one from Amazon myself, and I get like 5-6 hours of usage.