Is it possible to diff lfs files in git?

From this post by bk2204:

Another option if you want to have diffs is to run git config diff.lfs.textconv cat, which will have any files with the diff=lfs attribute automatically rendered through Git to show the LFS file instead of the pointer.

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Sourcetree GUI example:

My diff looked like this:

After running the command, it looks like this:

(You might need to re-open Sourcetree for the changes to be applied.)