Yes, but noted by this article the availability of the LZ0 will not be ready for the initial production run:
https://gmauthority.com/blog/2023/11/here-is-the-2025-chevy-tahoe/
Great news for the 3.0L Platform.. GM announced the refreshed Tahoe and Suburban will get the 3.0L Duramax diesel. We're assuming the Yukon and XL will follow as they are shown off very soon.
They have always had a "buffer" per say. At least the last few GM trucks I have owed has.. .granted, I've never had it at a half tank and just see if I could get 12 gallons in.. but, if that's the case whats the issue?