You install the version of the package intended for Server 2019. It you are using a package not intended for Server 2019, this may explain why you don't have an app in the package.
P.S. I am not a Windows Server expert and I have no idea on the support level that Intel is providing for this O/S. If you cannot find what you need, I am not going to be all that helpful attempting to help you.
intel don’t seem to do drivers for server 2019 as such. I’ve always just used the windows 10 ones. The problem is there app has been moved to the Microsoft App Store. So is not part of the driver.
anyway I’ve solved it in part. I’ve dumped intel raid and started using windows raid. Will make it easier to switch to AMD or ARM in the future.