Do you use visual regression testing, if yes on what projects?

Yes, I have a program which plots vector fields [1], part of CI creates some plots for cases which have previously caused issues [2]. They are not meant to be attractive, rather to exercise those edge cases. Example output here: [3]

[1] http://soliton.vm.bytemark.co.uk/pub/jjg/en/code/vfplot/

[2] https://gitlab.com/jjg/vfplot/-/jobs/5347850554

[3] https://jjg.gitlab.io/-/vfplot/-/jobs/5347850554/artifacts/i...

I use it on all my projects.

https://argos-ci.com makes it easy!

I am building the tool in the space and am genuinely curios if people are aware of this type of frontend testing and if they find it useful. Also it's pretty interesting to find some painpoints that I would love to solve with our product.