Unity 2019.x is not usable for me on Linux. Previously (the 2018.3 version) it launched directly and preserved the environment vars (e.g. LD_LIBRARY_PATH, but I don't mean only this one). Now it launches the Hub first and the environment variables are dropped. This is unacceptable and a reason I am staying with 2018.3. I am also unable to run Unity directly, there's no command line argument for that (I really don't want the Hub to lunch).