For now, we rely on integrations with dedicated deployment software. However, by the end of the year, we plan to add custom discovery so you can send any command/script to your assets to get custom data. This might open up the doors to also send commands which install something on the asset.
We are also working on an automation tool called Flow Builder. It will not work exactly as the on-prem deployments feature, but it will allow you to automate tasks, create your own logic, and integrate with other software deployment tools, such as Intune or PDQ. If you are interested, Flow Builder is in beta now, you can enrol in the beta program from here: https://www.lansweeper.com/product/beta/