The enforcement applies to the applications listed at https://video2.skills-academy.com/en-us/entra/identity/authentication/concept-mandatory-multifactor-authentication#applications
If your account is not using these apps, it's not subject to the enforcement. If it is, then you'll need to configure it for MFA. Unfortunately there is no opt-out option. More at https://video2.skills-academy.com/en-us/entra/identity/authentication/concept-mandatory-multifactor-authentication
If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.
hth
Marcin