Here are links to popular Community forums for SDRplay where you can get help and advice from other users who will have detailed answers to a wide range of questions:
Independent SDRplay Facebook Group
Independent SDRconnect Facebook Group
Independent SDRuno Facebook Group
A new independent nRSP-ST Facebook Group
Independent SDRplay groups.io forum
Independent SDRplay users forum
Old SDRplay forum (still a useful searchable resource)
Information for and about Plugin Developers