No, you will not receive an installable file. Downloading apps outside of the official store is never a good idea. For example, on mobile, you should always use the Play Store for Android and the App Store for iOS.
For desktop apps, we always aim to link to the official Apple and Microsoft stores, as they offer excellent security standards. However, if the app is not available from these stores, rest assured that you will be sent to its official website or git repo.
When it comes to Chrome browser extensions, we will never link to any site other than the official Chrome Web Store. We encourage you to never add extensions to your browser through unofficial channels. These channels may compromise your privacy and security. We also recommend that you follow the same advice for any other browsers.