In this situation both points are on consumer fiber (AT&T). A 28 GB file takes roughly 1 hour to upload to G-Drive and 1-2 hours to download on the other side. Speeds caps out at 14 MB/s using most services like G-Drive, Dropbox, etc.

Multipart/chunking with S3 / Google Storage may yield faster results.

Bittorrent/Resilio Sync is extremely slow, sub 1MB/s.