If we could only use VSC, that would be fine because VSC is fantastic.
I've found the same of IntelliJ products. They're so good that I don't mind being forced to use them.
C# and Swift are in that boat (VS and Xcode) but they’re doing alright, because they’re the main blessed languages for their platforms. JS is the only blessed language of web front ends. So yeah I don’t think IDE lock-in is a concern for JS but it definitely makes me happier as a developer to have deep integration that makes my job easier.
Even typescript (a MS product) can be written with all sorts of IDEs/editors.