Is it OK to add a new story in the current sprint?

Old (2017-2020)

So glad to never have worked with any of these participants. Scrum sounds so rigid, so waterfall.

> Is adding story(ies) going to be a routine? If yes again showcases lack of maturity of Scrum team in proper planning of resources, user stories and estimations with task for each story to target in achieving a sprint goal.

Fascinating levels of paranoid CYA attitude.