I switched away from Google to Duck a few years back. But I observed that I mostly do !g and end up on Google. I read similar comments from many others on other threads.
Recently I switched to Kagi and has been a very happy customer. I never visited Google after that. Only downside is the Search on mobile. You have to install an app and enable it as extension on safari. Logging in never worked and couldn't enable my premium Kagi on iPhone.
Google is better than Duck's backend (Bing or Yahoo, IIRC)
However, I find that most of my queries don't require Google to find the result. Maybe once every couple days I do a search, don't like the results, and then add a "!g". Most of the time it's fine and I get to avoid Google's ecosystem.