2019 Winter #ue4jam - Feb 14-19 - Theme: ALL'S FAIR IN LOVE IN WAR

Been doing some tests on sizes of empty projects, as I love the idea of size constraints.
Just looking for some clarification on the tiny category, as I can only remember ambiguous answers:

Is the size limit of the final .zip, or of the extracted files?
I see some past winners that are way past 100mb when extracted, but I also remember getting an answer that it is the uncompressed size that counts.

Can we strip out the redistributables from packaging?
Project Settings -> Packaging -> Include prerequisites installer
It’s 23 to 38MB in the end, which is a lot if the limit is 100mb uncompressed. Mobile platforms do not have this, and I assume the machines you test on have these installed already.