There is no longer an option listed for inline for the client export for openvpn after I upgrade to 19.1. It has been a while since i have attempted to download it so it may have been missing for some time or there is now a different method used for iOS that i am not aware of. I referenced the documentation here https://docs.opnsense.org/manual/how-tos/sslvpn_client.html that says to download the inline configuration. I only show Archive, File Only, Viscosity, and TheGreenBow under Export type.
"File Only" will contain the needed certificates too.
Thus this should be the same as the previous "inline" option.