My tests with making stand alone games with the current versions of MAX show that it currently exports out a lot of unnecessary files. I had a single level that was about 3GB. When I trimmed out all the extra stuff that wasn't needed, it was about 500MB. It's been reported (that this happens) and I'm sure that they will get this to do what it's supposed to as we get MAX closer to getting out of Early Access.
Intel i9-10900K 5.10GHz, 64 GB RAM, Nvidia GTX 1080 ti 11GB, Windows 10 64-bit, dual monitor display