Actually Mac is different, I have both, one for home and one for work - Windows.
Same here .... multiple platforms for work and play makes perfect sense as it improves productivity, ability to use all the tools in business today. Internet security, in my opinion, is never putting information your not willing to share on any gadget at all.
Securing your sensitive data “better” should involve a mix of stacked VPN’s, Tor, Virtual OS’s, Tails, Silent Circle Blackphone, Signal and PGP based Email......
Nothing on the internet is “secure” ...... but using specific tools to prevent what you have to share makes that data less of a low hanging fruit to be picked by nefarious sorts.
Just my opinion.