The final push to start using Firefox over Chrome on Android might finally be thanks to the enormous selection of add-ons (Firefox’s version of extensions) coming out next month. Chrome doesn’t offer native support for extensions in its mobile app. Also, better security.
I do see a difference between Firefox on a Pixel 4a and Safari on an iPhone 13. The iPhone loads a webpage in less than a second whereas Firefox needs 2-4 seconds for the same webpage. I still use Firefox though as it is better in every other aspect.