It has been a while since I’ve used it, but when I did it felt sluggish and missed some ads. It’s probably the only choice if you’re looking for something free though (besides 1blocker, haven’t tried that one)

Wipr 2 is a great paid ad blocker. Unfortunately most iOS blockers don’t work too well beyond this one and AdGuard (and I haven’t had the greatest experience with the latter either)

Probably not a small browser, no. I just really wanted to plug it tho

Does Servo count? It was originally a Mozilla project to write a web engine in Rust, then got transferred to The Linux Foundation when Mozilla laid off a bunch of its staff