I've used XFCE (since Mar 9th, 2008 until Apr 7th, 2021) now using "i3-wm v4.21" as my main window manager on all computers. But I still use a lot of XFCE software like Thunar been most notable. Thunar has received much needed love, thank you to all developers making it better. Thunar now has "Split View" (dual pane mode) this is one of the reasons why I used more "PCManFM" or "ranger", but unlike Thunar "PCManFM" never had an option to hide "menu" in GTK only in QT. And now Thunar's menu/toolbar is more customizable. File Highlight is a nice addition, I've been using custom "LS_COLORS" for terminal for a while now. Now all the Thunar needs is embeded file info dialog similar to side pane and maybe ability to have toolbar vertical (on left or right) ;-)

EDIT: One of the best choices XFCE team made is to not use/enable CSD [1] by default. This would of killed XFCE project for those of us who love classic XFCE look. Please never force users to use CSD, make it an option(al). Thank you!

[1] Window Header Bars - All header bars of Xfce Windows/Dialogs by default will be drawn by the window manager now (Xfwm4). Some dialogs optionally support 'GtkHeaderBar' (CSD) which can be enabled via a xfconf setting.