Depends on whether i feel I can trust the company, or whether the app is an absolute necessity. But generally I have several browsers in which I compartmentalise all my web activity.
Brave=facebook and twiiter
DuckDuckG0= Shopping
Safari = Regular browsing and work stuff (to get the continuity between devices)
Firefox = Finance
FireFox Focus = The search engine is set to google. I use this If i simply cant find the results using another search engine, or need to translate or use google maps or something. I try to compartmentalise google as much as possible.
SnowHaze = Other browsing I would like to keep more private, researching gifts or holidays or something.
Onion Brower = Tor for very sensitive things, perhaps medical symptom searches etc