I use Brave on iOS with javascript blocked as it is the only* iOS browser which gives me the ability to easily use the Web without JS while giving me the ability to quickly enable it for the site where it makes sense, and still retain the ad blocking feature.

A surprisingly big part of the Internet works as well or better and faster with javascript disabled, but sometimes it is actually needed and useful so I find this whitelisting method works well.

I tried playing around with the script blocking ability of native content blockers but never got it working properly, for one I think it can't block script tags only externa scripts.

But my recommendation, if you are giving Brave a try is to change the default to disallow scripts, and enable them as needed, it's refreshing to browse the Web without Popups 2.0 and all the other not so nice uses of JS.

(* only I've found with my limited searching)