I prefer to use Desktop to trade because it's more stable for me and I can do multitasking for another thing. I've always use Desktop computer online, but if I was visiting someplace, then I will use a laptop.

Besides that, I feel more comfortable when using Desktop because I can see a widescreen double than the laptop screen.

I have a VPN installed on my desktop, and it's premium account

I don't use virus protection because I think it's enough to use Windows Defender for myself because I don't browse to the strange link which I don't know. Mac Afee is good, but I think it needs more RAM to works.

I think you can choose Mac because it's more stable for work, but you need to ask about bigger RAM if necessary.