Steam.app would like to receive keystrokes from any application

I just installed a new version of Steam on macOS Catalina 10.15 (19A602) and got this unexpected request: > Keystroke Receiving > > Steam.app would like to receive keystrokes from any application I hit Deny since I can't see any good reason why Steam should need this. I can't find any answers, having looked at a thread on [Reddit](https://www.reddit.com/r/ThemeParkitect/comments/dgna1g/parkitect_would_like_to_receive_keystrokes_from/) and [Apple Support forums](https://discussions.apple.com/thread/250720391) . This security article from Sophos, [Synthetic clicks and the macOS flaw Apple can’t seem to fix](https://nakedsecurity.sophos.com/2019/06/04/synthetic-clicks-and-the-macos-flaw-apple-cant-seem-to-fix/) seems to be related. Why would Steam need this?