K6 has the page.screenshot function, but I wonder if it can somehow - via Sobek - make use of mature Visual Regression Testing tools, such as BackstopJS (which works with Playwright, whose API k6 Browser was based off of). It would be a great way to do automated, comprehensive VRT testing.
If a JS tool like Backstop can’t be used, what would be the general approach to either making it compatible or making a custom extension - be it with Golang or JS - to allow for this?