Why are both typescript-language-server and vtsls enabled?

[silvenon]

After reading #25477 (comment) I was unclear about why that was the solution to the problem. It looks like a workaround.

The default value of language_servers is ["..."], which apparently includes both typescript-language-server and vtsls, and this results in duplicate panels, right? But what is the purpose of having typescript-language-server enabled if both LSPs are saying the same thing? Is it to offer users the option to pick one?

Seems to me like the default out of the box Zed settings will result in duplicate panels, so we should disable one or the other either way. Can someone shed more light on this?