if pc/modem are compromised, am I safe doing private stuff on 4G phone only?

Web: https://www.reddit.com/r/privacy/comments/s6sx9x/if_pcmodem_are_compromised_am_i_safe_doing/

I fear my pc/wifi have been compromised, so for the sake of my mental sanity I decided to restrict personal activities to my phone only, and use the PC for stuff that I don't care about even if I'm being spied on.

So I disconnected my phone from the wifi and I'll only use my provider 4G from now on. I created a new Google account that I'll never access from the PC/wifi. I disconnected my phone from Whatsapp web, …

4g doing modem pc phone privacy safe