I’ve linked the account, but there is still no access to the storage. Has it been deleted by any chance? If it was deleted, can someone provide a link to download this version of dlss?
You can find the link in wayback machine website in NVIDIA DLSS | NVIDIA Developer, though it is not displayed in current page, it is still alive. For convenience, here is a direct link.
https://developer.download.nvidia.com/assets/gameworks/downloads/secure/dlss/UE_4.27_DLSS_3.5.10_Plugin_2023.10.17.zip