bartenderstoneware Kind of. I don't think you can realistically do it on Brave Android, but you can kind of do it on the desktop version, by launching the browser with a specific flag. More info here:
https://github.com/brave/brave-browser/issues/19872
The issue with this approach is that it disables JIT across the board, and there's no per-site toggle to enable/disable it as you please. You'll eventually run into breakage and won't have an option other than to enable it again.
Microsoft Edge also has this, but I'm not sure if it's available on the Android version.