I want to Publish a UWP project because I do not have a certificate, I can not publish inside the store. As far as I know, I need to create an appxbundle file. I can see that winget-cli use the single appxbundle file. But I do not find any options in Visual Studio or Documentation. How can I publish my project as appxbundle?
First of all, if you have a developer account, then you could publish your app to the store and the certificate will be automatically generated by the store.
If you don't want to publish your app to the store and you just want to distribute your app by yourself, you could still use Visual Studio to package your app like this: Create an app package using the packaging wizard.