The new Edge should offer more search options in the search bar, just like Firefox, we could type what we want to search for, and select where, so we could search on YouTube/ twitter/ Wikipedia... without having to enter the site, and only then do the search. It is very practical, and honestly, today is the only reason I continue with Firefox here.
@WandersonS13 Thanks for that feedback, and welcome to the MS Edge Insider's community!
We do have some functionality around that, which you can adjust on this Settings page: edge://settings/search. However, if you are looking to manually select the search engine each time, feel free to submit that suggestion through the in-browser feedback tool (Shift+Alt+I) so it can go directly to the Search team.
Hopefully that helps!
Fawkes (they/them) Project & Community Manager - Microsoft Edge