If you have an UEFI system, then yes GPT is needed, for a BIOS system, old ms-dos setup is fine. For a BIOS system only absolute needed is /
For UEFI/GPT you also have to have the EFI /boot partition.
All the rest is up to you, whether you use swap, /home and so on.
No idea what red wifi is, but does it work in Live mode?