Grid scale LFP with once daily cycling lasts 30 years before the cells are degraded enough to think about recycling.
And those are very low maintenance over that time.
You're probably mostly going to swap voltage regulators and their fans, perhaps bypass the occasional bad cell by turning the current to zero, unscrewing the links from the adjacent cells to the bad cell, and screwing in a fresh link with the connect length to bridge across.
Also: From what I understand the LFP battery degradation is essentially corrosion that is removed by recycling and you can retrieve 99% of the essential LFP elements and make it into a new battery. So economically we only need to extract the LFP related materials for each human user almost once, instead of oil over and over again.