I know several things have been suggested concerning layers.
One of the the biggest things missing is a layers panel for frames allowing you to do thinks like:
  • Blend modes. (Available in CSS already just needs to be implemented)
  • Opacity. (Again available in CSS just needs implemented)
  • Renaming layers
  • Show/Hide Layers
  • Group Layers into Further Frames
This is one of the biggest missing features making Recraft a full featured editor. (That and dark mode...)