When to use the Disavow tool of Google?

[stcole]

The disavow tool can be useful in certain situations, such as when dealing with a manual penalty, suspicious or spammy links, negative SEO attacks, or for link cleanup purposes. While Google's algorithms are better at ignoring low-quality links, the disavow tool can help address specific concerns and protect your site's reputation. However, it should be used with caution and as a last resort, with a focus on building high-quality links and regularly monitoring your backlink profile.

You use it the wrong way. You do bad rather than good.