Welcome to immigrationboards.com!
They might, they might not. What will you do if HO ask you to send them the original document because they have a doubt??1. One of my referees printed out the referee form, scanned and sent back to me via email because we could not meet each other physically (they reside in the UK, but are currently abroad due to their mother having health issue). With Covid 19 travel restrictions and their mother condition, they may not be able to come back soon.
Will HO accept a scanned copy or it must be a physically signed paper?
The question clearly asks for applications made to UKVI for the UK.2. My second question is, the form requires me to list all the immigration application I've ever made. Does that include application forms for tourism purposes? (for example, Schengen visa). It would not cause me much trouble to be honest, but just wanted to make sure I'm filling in the form correctly.