I'm using difftastic, it cuts down a whole lot of the noise

https://difftastic.wilfred.me.uk/

This looks good! Unfortunately it looks like it also suffers from exactly the same software supply chain problem that we need to avoid in the first place: https://github.com/Wilfred/difftastic/blob/master/Cargo.lock

Edit: also, consider how much of https://github.com/Wilfred/difftastic/commits/master/ is just noise in itself. 15k commits for a project that appears to only be about four years old.