What is the problem you are trying to solve?
Deploy all the asset in the same folder (jar, war and zip)
What is your project about? (e. g. Intranet, Partner Portal, Enterprise Website, etc)
All
What is your proposed solution? (optional)
Why jar and war deployed in the deploy folder are copied in osgi/module or osgi/war but not CX zip ?
Yes, it makes no sense that the /deploy folder doesn’t handle CX zip files as well…
I am not sure about past Community Versions but for current Liferay Versions and the still supported DXP Versions it is possible to deploy (Frontend) Client Extension .zip files via the deploy folder. If you build the client extension in a Liferay Workspace and it contains a client-extension.yaml file, the deployed zip will be recognized by Liferay and registered in the default Liferay instance.
If you have multiple virtual instances you have to pass the virtual instance webid to state to which instance it shall be deployed. E.g. via dxp.lxc.liferay.com.virtualInstanceId in the client-extension.yaml or liferay.virtual.instance.id in your gradle.properties file
I hope this helps.