TLDW; No

Basically the video is testing phones with varying charging speeds and how much battery degrades after 500 charging cycles. Also, the affects on performance after battery degradation at 5:37

Timestamps of some tests:

• Test results for different charging speeds at 3:06
• Storing batteries at 1%, 50%, 100% at 3:43
• Battery performance at 4:42

After 6 mins he talks about why the tests took 2yrs and how they did it 3 times.