nightcraw1er.488: It’s nothing to do with how it is downloaded, but that it’s one big file. If the download fails, you have to download all again. Smaller chunks are simpler to handle (and copy).
BrianSim: What browser are you using? I just tested downloading a game in Firefox, then disabled the Network adaptor (killing the connection entirely), then reconnected and clicked "retry" and Firefox picked up exactly where it left off.
Edit: Same resume ability with Vivaldi (Chrome based browser)
It isn’t me on Linux downloading one huge file. I am on windows windows downloading files 4gb or less, works fine. As for picking up where it left off, it might have got better, it never used to though. If a download fails or was stopped, it started a new one with (x) suffix.