I subscribe to BrowserStack, and it is really useful to quickly spin up something to test on an older iphone.
But you are right, you can’t do the BDD gherkin/cucumber/jasmine style CI testing that I have seen my dev teams do. But I think it would take me as long two write up some Gherkin as it would to build the thing in bubble !!
I also tried SauceLabs, but similarly came to a dead end. It isn’t for NoCoders. And Selenium similarly, it is so codey.
Will have another look. There was a piece of kit I remember that basically monitored your homepage every x minutes to check nothing was broken, but again it didn’t do the CI style “you have just broken the client update screen” thing.
Maybe an opportunity beckons