Comment by rkangel

Two reasons:

I don't use a tiling WM, and tmux[1] does an excellent job at the tiling features.

I do the majority of my work physically at a Linux (Fedora) desktop, but I also work from home SSH'd to that desktop. Being able to just attach to the same session and pick up where I left off, with all the same shell management, is great.

[1] I used tmux for years, but have very recently switched to Zellij. I find the pane navigation to be much smoother (and more discoverable).