Is it possible to use BrowserStack when using Browser library.
There is an article on how to do it with SeleniumLibrary ( https://medium.com/detesters/integrating-robot-framework-with-browserstock-bddf5b0e0c14 )
and also an article on how to do it with Playwright directly.
but can it be done with Browser library, and if yes, how is that done?
According to this article can do that by installing the node dependencies, setting the browser capabilities with your browserstack credentials and then you can run the tests.
Maybe you could do that by extending the browser library with a java script module?