https://caniuse.com/?compare=chrome+106,safari+16.0&compareC...
I really don't see how that translates to "Safari and Chrome trading blows" and Safari taking over Chrome by "50%"?
Also, here is more representative dataset, where you can see that Safari has more than 5 times the number of API failures compared to Chrome, and 3 times compared to Firefox (in the stable channel): https://wpt.fyi/results/?label=master&label=experimental&ali...
Interop2022 is probably what your referring too but that’s just a small (but still important) functionality that the browsers have agreed to focus on. Interop is great, but using it as the primary metric for your browser is very dishonest. Apple tried to do this in their regulatory filing but every other vendor and developers said that the overall stats are much more representative.