Does updating MyDomain in the sandbox affect MyDomain settings in production?
The documentation makes me think not, but it does noy explicitly callout whether the deploy to users buttons will deploy MyDomain on that sandbox instance or if this is an org level change.
Documentation:https://developer.salesforce.com/docs/atlas.en-us.identityImplGuide.meta/identityImplGuide/domain_name_testing_and_rollout.htm
Thanks.