For 2020 : Install Linux on XPS15 and warranty

Hello all,

I want to buy an new XPS15 and install Linux on it.

If possible by installing my self a second SSD disk  for dual boot. I do not modify first Windows OS

DELL support said me by chat that all my warranty will be VOID if I do that.

> Did I understand well ?

Because I read lot of people here installing Linux on XPS13 and 15 doing that and DELL's community messages (~ years 2008 - 2010 ) that said that warranty is not void with these actions.

tx for your future clarifications