Dependent Care FSA while MFS

My wife and I file as “married but separately” due to my student loans. In the past, we’ve each elected the max of $2500 for the Dependent Care FSA. For 2022, however, we thought it would be easier if I elected $5000 and she elected $0 for the Dependent Care FSA. I’m now wondering if that’s prohibited and I should take action now for exceeding the $2500 limit as MSFer. Thanks.