Early model Li-ion were maybe 100 charge cycles, that has improved to multiple hundreds, Li-po were always several hundred and can now be over a thousand. Battery tech has moved on substantially in the last 20 years (not capacity unfortunately). Most phone batteries will last at least 3 years for most users (and those in the EU get a 2 year warranty). Although the re-usability of phones is massively increased with replaceable parts. I'm thankful we're moved past charge memory of NiCad and NMH which were the height of batteries in the 90s. I've seen so many fewer battery issues with laptops in the last 5 years compared with the previous 5, so the tech is not as bad as you make out. Putting that much energy into such a small space makes me want to source genuine parts more than pattern match products, but that is no guarantee cf. Samsung, at least we've moved on from the days of $100+ replacement batteries.