Same thing happened to Microsoft with browser selection. This does not really change anything. Google search results are just better.
By the way, it's not like a marriage where you bind yourself to one party exclusively. I use DDG as default but fall back (for any queries that do not yield good results and are non-sensitive) to Google when necessary. Still an improvement.
Apple has learned from this it seems - you're banned from running any other browser engine on their platforms so this can't happen again on iOS.
If you do that, I think you will find that your rarely, if ever, need to go to google.