src/vs/workbench/contrib/extensions/browser/extensionEditor.ts/PreReleaseTextWidget/isPreReleaseVersion
class PreReleaseTextWidget:	private isPreReleaseVersion(): boolean {
		if (!this.extension) {
			return false;
		}
		if (this.gallery) {
			return this.gallery.properties.isPreReleaseVersion;
		}
		return !!(this.extension.state === ExtensionState.Installed ? this.extension.local?.isPreReleaseVersion : this.extension.gallery?.properties.isPreReleaseVersion);
	}