Only India, Thailand, Singapore, and Hong Kong support Dual SIM Dual Active.
For your reference, here is more information about Dual SIM Dual Active:
1. Dual SIM Dual Active (DSDA) is a feature that allows a smartphone to maintain simultaneous connections on both SIM cards, enabling you to make or receive calls, send messages, and use mobile data from either SIM without having to switch between them. This means that both SIM cards can be active at the same time, allowing for better network flexibility and convenience;
2. The DSDA feature requires specific carrier network support. Different countries have varying regulations and standards for mobile networks. Please refer to the local carriers.