git reset and git clean, git checkout

Option	Command	Scope	Risk Level	Use Case
X	git reset --hard HEAD && git clean -fd	Working tree + staging + untracked	⭐⭐⭐⭐⭐	Completely wipe all local changes
u	git checkout -- .	Working tree (unstaged only)	⭐⭐	Discard unstaged changes
c	git clean -fd	Untracked files/dirs only	⭐⭐⭐	Clean build artifacts, logs, etc.
S	git reset HEAD	Staging area only	⭐	Unstage files (keep working changes)
s	git reset --soft HEAD	Commit history only	⭐⭐	Amend last commit (keep staged changes)
m	git reset --mixed HEAD (or git reset)	Commit history + staging	⭐⭐	Redo commit from scratch (keep work)
h	git reset --hard HEAD	Working tree + staging + commit	⭐⭐⭐⭐⭐	Force reset to a clean state