XFCE and LXDE are nice in their own right. I used to run xfce and lxde on my laptops and netbooks. Those bottom of the barrel, underpowered, bargain bin machines hummed. At the time though HiDPI support was weak still (at least for xfce) so they never made it to my desktop. Didn’t like many multi-sized monitors. I assume this is a problem of the past now.