The new version of cdproto (6ed5b53) causes incognito mode to be unusable.
Using the latest version of chromedp, v0.13.6, will default to using [email protected], which will cause incognito mode to be unusable. It has been tested with Chrome versions 133 and 136. Downgrading to [email protected] (which also downgrades chromedp to v0.13.1) resolves the issue.