"Real-world data showed that Tesla battery degradation was less than 10% after over 160,000 miles (257,500 km)"
According to the graph there's a slight dip during the first 50k and then it levels out to a steady decline. There is no data for batteries around 60% capacity, since there are none yet :)
About half of the cells are effectively dead, internal shorts or electrolyte leaks. Included in this half are cells with mA discharge currents which is very out of spec. Not suitable for use.
The other half lived with an average capacity of 2050mAh with a std deviation of 150mAh. This is only a degradation of about 30% which was pretty surprising to me.
The death spiral starts at 80%. Newer Macs and iPhones now get pretty aggressive about pushing users to seek service.
Also worth noting that, as of Big Sur, MacBooks that are mostly used plugged-in will not too off past 80% until asked. I expect that this will pay off bigly for consumers.