Firefox is a rather good example - the update to Firefox esr 68 (from esr 60) came far later in testing than either unstable or stable. Given that some trigger

Firefox is a rather good example - the update to Firefox esr 68 (from esr 60) came far later in testing than either unstable or stable. Given that some trigger happy devs remove support from old versions as soon as they leave support, this can directly affect browsing experience.