Even though I have "Open Keybase on startup" de-selected in my settings, the program still starts up in the taskbar tray.
Keybase GUI Version: 1.0.41-20180219032931+48b0601
hmm, do you have a shortcut called GuiStartup in %appdata%MicrosoftWindowsStart MenuProgramsStartup ? If so, delete it, and switch the setting in the GUI on and off again.
This is also true for the macOS client.
Steps to reproduce:
Related: #3311
/cc @heronhaye
@jsejcksn Can you send feedback in the settings tab with logs?

@heronhaye
Thank you, we'll check it out.
Confirmed issue is occurring on Mac still:
Keybase GUI Version: 5.2.0-20200130011203+cf82db8320
This issue is on the KeyBase desktop app for MacOS.
Every time I turn off "Open Keybase at startup" in "_Settings_" -> "_Advanced_", it seems to do nothing. Next time I restart my computer, it starts automatically and reverts that setting back to checked.

I am still experiencing this issue as described in the reports by @jsejcksn and @blizzrdof77 above.
Keybase macOS client version: 5.3.0-20200310172631+4f2689009b
I just submitted feedback via the Settings tab in the app.
Most helpful comment
This is also true for the macOS client.
Steps to reproduce:
Related: #3311
/cc @heronhaye