I use wobbly windows with transparency on the window I’m currently dragging ;) I don’t think I could have it any other way, especially since the regular dragging animation doesn’t feel as smooth as on Windows or Mac sadly, at least on NVIDIA with X11.
It is just the default KDE panel set to 34 and enabled the floating panel option, moved the date and time to the center with two spacers around it and changed it to have the date always next to the time. I also added a global menu to the right of the start button and the pager and then put margin separators on each side of the spacers. I haven't ventured into using anything fancy like Polybar yet...