#6619 added API support for floating windows.

Next step is to add some "chrome" for this.

• ✅ #25561 Some have requested an easier way to close the top (or all) floating windows, without navigating-to the window to :close it. We could introduce the "f" prefix similar to "p" family of commands (:pclose, :ptag).
  • :fclose closes the highest z-index, and :[count]fclose closes window at count z-index.
  • :fclose! closes all floats.
• Or a :float modifier? Analogous to :vertical, :tab, etc. #12050

Instead of introducing analogs for :pedit, :ptag, etc., there could be a global option that configures the "preview window" to be a floating window (with default position, dimensions, etc.).