I have checked the scene and found this model contains many detailed objects. A detailed scene is ok with that size. Anyways, We will clear some backup data and make the file smaller next time, sorry for the inconvenience.
The terrain grasses and the dynamic models are very resource intensive, and the scene itself is very detailed in terms of materials and objects. We will probably have a lite version for this kind of detailed model next time.
Another suggestion that I been writing in the discord as well, maybe can add another folder for the HDRI only as sometimes we just want to try the HDRI in our scene without having to download more than 1GB scene just to delete it later.