You should really follow up with wherever you found out about this settlement in the first place.
A quick online search revealed this article which has a link on how to claim the settlement if you don't receive an email:
https://9to5mac.com/2023/01/09/macbook-keyboard-lawsuit-settlement-eligible/
This article mentions you have until March 6, 2023 to complete the process. Payments were expected to be sent after March 16, 2023 after a final approval hearing.
I have no idea of the accuracy of this information since I did not follow it except to know a settlement had been reached.