I struggeled with the new Gui, have a love hate relationsip with it (the icons don't really work, are hard to distinguish visually and many more problems) but realized they will never go back. I bascially go around it by using quicksearch more often. Other parts I really like. But it is the GUi I use here and they will not revert it.
Btw: my main issue is the OM. If you have very long object names like in CAD files the tag tab slides off into invisible space. Super annoying. I find myself like 20 times a day dragging back the separator in OM just to see the Tags. They need to make the separtor fixed. See here. The tags simply shift off into left off screeen: