You can just use the compressed zip instead of installer. I will just list the differences here.
Compressed version
Compressed version is <1GB. Everytime there is a new update you need to download whole zip again. In case of bugfixes, you need to manually include the fixes by going to the specified file paths.
Installer version (not applicable for Android; Mac and Linux machines needs to use Wine application to make this to be supported)
It only installs 6GB+ uncompressed version. Everytime there is an update all you need to do is run the verify integrity check and it will update the new files and updates files (so from second time the download size is likely around <2GB (rarely upto 2.5GB), because it won't download same non-updated files again). Also bug fixes are more frequently updated in this version, compared to non-installer version.