src/vs/workbench/services/extensionRecommendations/common/workspaceExtensionsConfig.ts/WorkspaceExtensionsConfigService/getRecommendations
class WorkspaceExtensionsConfigService:	async getRecommendations(): Promise<string[]> {
		const configs = await this.getExtensionsConfigs();
		return distinct(flatten(configs.map(c => c.recommendations ? c.recommendations.map(c => c.toLowerCase()) : [])));
	}