Больше ничего не могу сказать. Вот только что список всех установленных расширений у меня (здесь ничего нет, что содержало бы npm):
$ code --list-extensions | xargs -L 1 echo code --install-extension
code --install-extension 13xforever.language-x86-64-assembly
code --install-extension alefragnani.pascal
code --install-extension alefragnani.pascal-formatter
code --install-extension CADENAS.vscode-glsllint
code --install-extension CAPTNCAPS.ue4-snippets
code --install-extension cschlosser.doxdocgen
code --install-extension dbaeumer.vscode-eslint
code --install-extension donjayamanne.githistory
code --install-extension ecmel.vscode-html-css
code --install-extension EditorConfig.EditorConfig
code --install-extension EliotVU.uc
code --install-extension EngineDesigns.retroassembler
code --install-extension fi1osof.prisma-cms
code --install-extension GitHub.vscode-pull-request-github
code --install-extension GraphQL.vscode-graphql
code --install-extension Gruntfuggly.todo-tree
code --install-extension henriiik.vscode-perl
code --install-extension imperez.smarty
code --install-extension infeng.vscode-react-typescript
code --install-extension Ionide.Ionide-fsharp
code --install-extension jakob101.RelativePath
code --install-extension jeff-hykin.better-cpp-syntax
code --install-extension jpoissonnier.vscode-styled-components
code --install-extension kumar-harsh.graphql-for-vscode
code --install-extension lonefy.vscode-JS-CSS-HTML-formatter
code --install-extension mgmcdermott.vscode-language-babel
code --install-extension mhutchie.git-graph
code --install-extension mikestead.dotenv
code --install-extension mjmcloug.vscode-elixir
code --install-extension mquandalle.graphql
code --install-extension ms-dotnettools.csharp
code --install-extension ms-vscode-remote.remote-containers
code --install-extension ms-vscode-remote.remote-ssh
code --install-extension ms-vscode-remote.remote-ssh-edit
code --install-extension ms-vscode-remote.remote-wsl
code --install-extension ms-vscode.cmake-tools
code --install-extension ms-vscode.cpptools
code --install-extension ms-vscode.cpptools-extension-pack
code --install-extension ms-vscode.cpptools-themes
code --install-extension ms-vscode.mono-debug
code --install-extension ms-vsliveshare.vsliveshare
code --install-extension ms-vsliveshare.vsliveshare-audio
code --install-extension prb28.amiga-assembly
code --install-extension Prisma.prisma
code --install-extension redhat.java
code --install-extension richterger.perl
code --install-extension Roncho.assembly-8086
code --install-extension scala-lang.scala
code --install-extension searKing.preview-vscode
code --install-extension SimonSiefke.svg-preview
code --install-extension slevesque.shader
code --install-extension syler.sass-indented
code --install-extension sysoev.language-stylus
code --install-extension technosophos.vscode-make
code --install-extension tht13.python
code --install-extension twxs.cmake
code --install-extension vadimcn.vscode-lldb
code --install-extension VisualStudioExptTeam.vscodeintellicode
code --install-extension vscjava.vscode-java-debug
code --install-extension vscjava.vscode-java-dependency
code --install-extension vscjava.vscode-java-pack
code --install-extension vscjava.vscode-java-test
code --install-extension vscjava.vscode-maven
code --install-extension wingrunr21.vscode-ruby
code --install-extension Wscats.eno
code --install-extension xabikos.ReactSnippets
code --install-extension yzhang.markdown-all-in-one
code --install-extension zenor.makefile-creator
Так что придется тебе гуглить, если очень нужна эта фича.