Describe the bug
I went to Network and I saw that vscodium is connecting to

https://marketplace.visualstudio.com/_apis/public/gallery/extensionquery

Reading Docs page I learned about product.json which is said to be set to open-vsx.org. I checked /usr/share/codium/resources/app/product.json and I found that

"extensionsGallery": {
"serviceUrl": "https://marketplace.visualstudio.com/_apis/public/gallery",
"cacheUrl": "https://vscode.blob.core.windows.net/gallery/index",
"itemUrl": "https://marketplace.visualstudio.com/items"
},

It does not seem that way.

Please confirm that this problem is VSCodium-specific

• This bug doesn't happen if I use Microsoft's Visual Studio Code. It only happens in VSCodium.

I do not use vscode, so i do not know.

Please confirm that the issue/resolution isn't already documented

• I checked the Docs page and my issue is not mentioned there.

To Reproduce
Steps to reproduce the behavior:

Browsing or installing extensions.

Expected behavior
No connections to Microsoft MarketPlace.

Desktop (please complete the following information):

• OS: Debian-based.
• Architecture: x64
• Version: 1.45.1