Files open in new window instead of new tab

Hello,
Current version doesn't work properly in Ubuntu. When I try to open file by a right click action in Nautilus, file is opened in new window (new instance) instead of a new tab (share one VC instance).
Cheers,

Reproduce the issue in Ubuntu by opening a file from Nautilus with the right-click action, then inspect the relevant file-opening integration and existing behavior. Done means the file opens in a new tab within the existing VS Code instance rather than a new window or instance.

索引モデルが issue の本文から書いたものです。