Safari Preferences "Open new window" not available

I am running Safari 15.3 on Big Sur 11.6.4 on MacBook Pro (2019, 16"). Safari Preferences/General has for "Safari opens with:" only two options:

- "All windows from last session"

- "All non-private windows from last session"

The following options are not available:

- "A new window"

- "A new private window"

When I go to any other user account, all four options are available. So, the problem is with this one user account only.

I turned off Safari extensions, cleared Safari caches, reinstalled Safari, rebooted MacBook Pro, it didn't help.

Any siggestions?