If you’re not actively blocking connections to their servers (by any number of means) it doesn’t matter whether you consciously give them money or not.
There is so much third party tracking in apps and websites that it’s really got to be at the network level. They make bank by tracking you and selling that data for profit.
I’ve been Google-free for months now and so far the only inconvenience has been ReCAPTCHAs not loading, but that’s limited to just a handful of websites that I don’t care enough to use in the first place.