https://wccftech.com/baldurs-gate-3-dlss/

Baldur's Gate 3 could be getting NVIDIA DLSS support in the future, judging from some new information found on Steam Database.

According to the reliable website, as spotted by Reddit user makisekurisudesu, a new branch has been added a few hours ago that hints at testing for NVIDIA DLSS support. No official announcement has been made on the matter, so it may take some time for DLSS to be implemented.