Browsers do compete on merit. I use both iOS and Android. My Pixel 6 has an inferior processor compared to my iPhone 14. Even a 5 year old iPhone would smoke my Pixel 6 in benchmarks. But my day to day use Chrome on Pixel 6 is faster for JS heavy apps, scrolling and faster network loading. On a flaky network for sites with http3 the difference is day night between Safari and Chrome android. Chrome’s heuristics based rendering is far more advanced than Safari. I would say Safari a very good JS engine but Chrome has found other ways to make pages much faster.