I didn't used GDrive enough to see your problems but for me, the missing "right clic" -> "copy public link" to get a DIRECT link on a public file is what's stop

I didn't used GDrive enough to see your problems but for me, the missing "right clic" -> "copy public link" to get a DIRECT link on a public file is what's stopping me from even considering it as an alternative to Dropbox.