Google's apps offer opt-in voice search (solving Audio), optional end to end encryption for bookmarks & search history (solving Browsing History), while location and diagnostics are opt in as well and it's also up to you if you want to store your address book of store you credit card with Google (solving Contacts & Financial Info).
Yes, most people will probably use Google Contacts, Maps, unencrypted bookmarks & browsing history and and store their credit card data in the browser, but you're not forced to do that.
I really wish DDG would innovate on search, improve their own crawlers & indexing and then attack Google head on by comparing better results with the ad-ridden, SEO-flooded shit show that Google results have become. Instead, their marketing keeps on comparing apples to oranges and just keeps on playing the privacy angle, which is intellectually dishonest because DDG and Google have completely different goals.
Boy do I hope for some real competition in the search engine market. Brave and Neeva can't launch soon enough. I'm so sick and tired of giving DDG changes upon changes only to switch back to Google because the results haven't improved much.