I looked at my JIRA cloud configuration, I do not see the enable estimation as in the documentation?
https://support.atlassian.com/jira-software-cloud/docs/enable-estimation/
The next-gen projects we have are company managed. Our issues have story points, and story point estimates.
We are using story point estimates to capture our estimation for Epics to aid quarterly planning with product.
When we break epics into stories we complete the story point field, and roll up all the story points to the the story point field on the epic.
I believe estimation is enabled though since I see Time Tracking, Original Estimate fields.