My personal experience is that I used a lot of tiling DE back when I had a laptop with 256M RAM.
Lately my last three laptops have had 8G and more of RAM so I don't see the point.
Mainly because I use vim+tmux as an IDE. So I'm already using keyboard shortcuts extensively to quickly navigate through vim, vim tabs and tmux.
A tiling DE would add a third layer on top, that I don't feel I need.
Sure I'm a Linux veteran who has been using keyboard shortcuts for 20 years but there are limits to how far I want to push this. And I feel that vim+tmux is my limit. My DE is vanilla Gnome Desktop on Fedora and I'm loving it. (obviously with animations disabled it feels as snappy as Sway or Awesome WM)
Edit: Just to expand; after hours of coding my brain can do vim+tmux keyboard shortcuts without thinking. The short breaks within that time where I switch to other windows would only disrupt my flow if I had to switch to a whole new set of shortcuts.