Hi there,

We have a thread running with ~200 replies and ~20k views on an issue with the Steam client freezing/crashing when trying to open/close, a few users have joined in with band-aid solutions (we're still awaiting a mod/employee to not only resolve it, but to acknowledge the error exists & they are trying to assist).

Take a look and see if your issue is the same or linked.

Here => https://forum.square-enix.com/ffxiv/threads/469908-Black-screen-after-launching-the-game