MFA has two parts: an authenticator enrolled for your login and the security requirement applied when you enter a workspace.
Your saved authenticator belongs to your CaseWyze login identity. The destination organization's policy and your role there determine whether MFA is required for workspace access. An organization can require MFA even when another organization you belong to does not.
You generally do not need a separate authenticator enrollment for every organization accessed with the same login. Do not delete or reset your working authenticator when switching to an organization that does not require MFA.
A different email or separate login identity can have different MFA enrollment. Always check which account you are using. A new or expired session may require verification again.