> At a past gig I had to change 5 different repositories (5 separate PRs, all needing approval) to send an email. In a rails app that would have been a trivial task.
That sounds like no thought was put in the system before development. Well thought out scopes & contracts between services should not create a situation like that. Reminds me of a commenter on HN who were rolling back changes to all microservices if one service needed a rollback. These kinds of issues are dead giveaways that devs are paying lip-service to "microservices." Also, devs need to understand that they don't need to be on microservices or on the latest fad. Use what works for the team. A 10-team of devs cannot necessarily adopt workflows of a FAANG.