That's just not true, though. As with many console things, multi-tasking is totally possible but it's discoverability is terrible. Ctrl+z and `jobs` is the entry level, with tmux being the end-state reached via gnu screen. This lack of discoverability is the same problem voice assistants have only moreso; no `apropos` and no tab completion.

GUIs are for discovery, CLIs are for power via composability, voice/NLP assistants are for convenience.