One typical case is navigating a file manager to grab files that I need to drag and drop on a web UI, or folder/URI slug names I need to keep copying back and forth to use on a workflow.
Another is watching stdout/stderr of a running script and a log tail at the same time.
Sometimes I have tabs of web, file manager and some other app on one side and a terminal on the other as terminal commands are the glue of a workflow.
Or I'll be screening a video on the left and doing edits on the right. Or keeping notes open on the side during a conference call.
Sometimes I'll only have one window in a virtual desktop and ultrawide is too much, so I just have an idle terminal window as padding.
Not having to hunt around for windows then hunting for their edges helps when I'm constantly opening, closing and sizing terminals, file managers and so on and so forth. It simply is faster with tiles.