Same experience here - we run a docker instance of Chrome using tabs for multiple pages rather than multiple browsers, and they regularly run for days without issues. Of course their RAM usage gradually expands but it is easy enough to systematically stop & start the container, thanks to some built in error and fault handling to retry any requests which failed.
I can’t say I’ve seen one tab bring down the entire browser, but I’m sure thats feasible, but thanks to docker and the fault handling above, it’d restart the instance and be up within seconds.