@nmdrenard you want lossage analyser. Something that would read last N keystrokes in C-h l and attempts to find and suggest a more efficent way. afaik that does not exists

imho Emacs (unlike IntelliJ) does not have it simply because it would not be easy to implement due to modality, the concept completely foreign to Intellij (and most other editors)

When you know what function is bound to the long key strokes, running describe-function will tell you all the keybindings that function is bound to