Roughly true, if you also avoid using the vast majority of smartphone apps. But for me, going that route is an even greater inconvenience than just not having a smartphone. It requires greater vigilance and caution.
The path of least resistance for me is to avoid smartphones and use a real pocket computer instead.
> Why? Simply because I don't like being spied on
Having a smartphone and being spied on are not synonymous. I am using Librem 5 smartphone, which does come with free spying.