I would say that I have the exact opposite experience.
My company is moving from IE to Edge as the default browser and I search for code issues on Edge (Bing). I usually do not like the results and then have to manually type in Google.com > search for code issues as that gives me better results.
I like Edge, but the setting for the search engine is quite difficult to find despite being (I assume) one of the most common settings to change. You have to click on "Privacy, search, and services", then go the "Services" heading and click on the tiny "Address bar and search" box, and then you finally come to the page where it will let you change the default browser. Said "Address bar and search" box is also the very last item on the "Privacy, search, and services" page with no highlighting or emphasis whatsoever.
Meanwhile for Firefox, I just have to go to "Search" and the setting for default search engine is immediately obvious. Chrome seems to have a similar layout as well despite being produced by a search engine company. Edge is my daily driver, but it still took me way longer to find the default search engine setting in Edge compared to Chrome and Firefox.
Also, I have to compliment Firefox for making it really easy to search with a non-default search engine. I generally use Google, but I use Bing when searching for internal work stuff since it is integrated with O365 and SharePoint.
> setting for the search engine is quite difficult to find
Didn't seem all that difficult to me.
I went to settings, put "search" in the search box. That highlighted in yellow "address bar and search" click "manage search engines" click, 3 dots next to google, click, make default, click. 4 clicks with guiding highlight throughout. Didn't even need to google how to google with edge.
I'm still using FF. However, switching search engines in Edge seems about the same difficulty as doing the same in FF or chrome.
