It's very common for shared project-specific setting files to be stored in ".vscode" that are used by all developers on the project, including launch/task configurations. VSCode settings are hierarchical and composable (non-scalar keys are merged).
Yes, if those files apply to all team members using the same tool absolutely check them in. What's the problem? It reads to me like maybe you don't know what these files are actually used for and why a team benefits from sharing them.