In v4.885 I improved the "Toggle Pin/Unpin Focused Window To Float On Top" actions.
There is now a condition "active_window_is_pinned" that can be used in Conditional Activation Groups that allows to add a unpin button to windows if they are made to float on top:
Here is a example Preset which makes a window float on top when pressing CMD+OPT+CTRL+F and shows such an indicator:
FloatOnTopIndicator2.bttpreset (26.0 KB)