As a user and an extension developer (specifically for this) I prefer the vscode. So far our conversation, issue-resolving with the vscode, has been pretty good. I really don't know how it will be if we use codium instead of vscode. Will the codium team be responsible or vscode?
So I would still prefer vscode for their prompt responses.
The difference is just who builds the vscode. The application and licence are the end product. So I am taking an educated guess that any issue would be the same because the code base is the same.
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