Those were high-profile examples. But most apps implement some sort of telemetry even just basic product analytics e.g. MixPanel or Google Analytics. Both of which collect a wealth of user data.
So if I were you I would not use any app or search engine. Just to be on the safe side.
If you were me, you might've deleted that remark in shame after realising it is maximising snark at the expense of worthwhile advice.
What I actually do is: minimise the number of apps installed, run a pihole to misroute unwanted traffic, run a VPN tunnel between home and a VPS that I manage myself for location masking and additional egress filtering, install a nonmonetized content blocker for which the source code is available (and run in advanced mode, with assets manually unblocked only by need), and use DuckDuckGo as my search engine.
Neither MixPanel nor GA are in my good books, and if a website requires such spyware to load before it functions, I abandon it.
What's more, I don't allow anything of the sort to be installed on my own services. The only third-party assets permitted are the card-capture fields from our payment gateway.
