No because the law is still active. You would need congress to repeal or amend it. Or the supreme court to rule it unconstitutional. Also this just pardons people who were convicted in the past.

>Does the proclamation protect me from being charged with marijuana possession in the future?

>No. The proclamation pardons only those offenses occurring on or before October 6, 2022. It does not have any effect on marijuana possession offenses occurring after October 6, 2022.