I don't know if the usage is high enough to make a dent, but Brave seems like a better alternative on mobile: all the quality of Chrome without the downsides.
To expand on the quality point: I used Firefox a long time past most of my laymen friends had switched to Chrome, despite it being painfully slower, and I spent years giving it trial periods on a regular basis. But the quality gap was just too reliable and persistent, with it always being slower, jankier, and less featureful (from a product perspective, I still can't believe how many years it took for them to get per-tab processes). When I've tried it recently on mobile, it's seemed quite a bit slower, and
Combined with a decline in confidence in their ability to be an effective organization that started with Eich's ouster and has only gotten worse over time, it's difficult for me to see why most users would choose mobile FF over Brave. The only advantage i can see is extensions, but it's my impression that most users don't much care to use them.
To expand on the quality point: I used Firefox a long time past most of my laymen friends had switched to Chrome, despite it being painfully slower, and I spent years giving it trial periods on a regular basis. But the quality gap was just too reliable and persistent, with it always being slower, jankier, and less featureful (from a product perspective, I still can't believe how many years it took for them to get per-tab processes). When I've tried it recently on mobile, it's seemed quite a bit slower, and
Combined with a decline in confidence in their ability to be an effective organization that started with Eich's ouster and has only gotten worse over time, it's difficult for me to see why most users would choose mobile FF over Brave. The only advantage i can see is extensions, but it's my impression that most users don't much care to use them.