Long time DDG user here. I haven’t used Google for the last ten years. I typically use DDG for non long tail queries for simple queries like: ‘Is it slashdot.com or slashdot.org’. Or ‘Pasta recipes’.
For the 1% of queries where I need Google, they’re typically long tail queries and highly specific like SHA256 sums of software I downloaded, phone numbers, IP addresses, and obscure error messages I get during daily computing.
(Google is great for recon and OSINT)
If DDG yielded good results for those long tail queries I don’t even see a reason for using Google.