There are still face mask requirements at First Aid (both parks).
From the DLR website:
Health & Safety
Face coverings are optional but recommended for Guests in all indoor locations.
Face coverings are required for all Guests (ages 2 and older), regardless of vaccination status, in certain indoor health settings, such as in First Aid.
The State of California strongly recommends that all Guests complete their primary vaccination series or obtain a negative COVID-19 test prior to entering the
Disneyland Resort.