No, LiFePO4 is actually pretty excellent in that way: It's long lasting, and not harmed nearly as much by charge/discharge cycles as many other types. 3,000 cycles is not an unreasonable claim, and it's a lovely chemistry in that way. (It also tends not to self-combust.)

It has other tradeoffs, though, like being physically large compared to a lead-acid battery of similar capacity (or, say, a bunch of 18650s).

And like other Lithium-based cells, longevity is maximized by never charging it to 100% and leaving it there long-term -- which, unfortunately, is probably not what Ecoflow is doing. (Ideal long-term state-of-charge is closer to somewhere between 50 and 80%.)