I use emacs, but I don't think lsp-mode can do all the refactorings which intellij provides:

  Safe Delete
  Extract Method
  Extract Constant
  Extract Field
  Extract Parameter
  Introduce Variable
  Rename
  Inline
  Change signature

Refactorings are great, because you can do safe code transformations very quickly. If you get to know these features, it's hard to do without them.