Immortal Fenyx Rising has just been updated to Update 1.3.1. The new update is primarily a hotfix for the previous major content update and is addressing issues mainly related to lags, freezing, and more. The new update aims towards improving system stability and ensuring that the DLC and all the other content that came along with it are playable for everyone.
Currently, we’re not aware of the size of the update on both the PS4 and PS5. However, since this is a hotfix, we can expect the size to be much smaller than the previous update. You can go ahead and download Update 1.3.1 right now on all supported platforms.