+1 for broot[1], it works so fast and can be used even to fuzzy search sub-sub-directories. I'm also bit lost on the features but the help is quite good and mostly I use it just to find a directory and enter it, which requires only one keyboard shortcut.

[1] https://github.com/Canop/broot

What's too complex ?

I'd like to get more information on what is less obvious than it was at the beginning and any hint on how to fix that. Broot's chat is always open for that.