tldr; Firefox changed the order in which suggestions appear when you start typing in the address bar. It used to show previously visited websites first. Now it prioritizes its own suggestions.
To get back to the old behaviour, navigate to about:config, search for the key browser.urlbar.showSearchSuggestionsFirst and change the value to false.
What’s wrong with librewolf?
No mobile version
Fennec is the closest thing to a mobile version of Librewolf. It doesn’t have all the privacy and security tweaks as Librewolf but it’s far better than mobile Firefox.
There’s also Firefox Focus but it’s more difficult to use as a main browser since it defaults to wiping all traces of history and settings after each session.