bitcoin core – Why on startup I can’t minimize to tray?

If I set Bitcoin core to start on system login, the option to “Hide tray icon” and “Minimize to tray” become disabled. On my system (Pop_OS!) This causes bitcoin-qt to be neither on the system tray, nor in the taskbar when I minimize it, and I don’t know how to make it show again.

Is there any reason for these options to be disabled?

How can I make it show again in this scenario?

Example of disabled options