I have installed PLSQLDeveloper 15.0.4.2064 (64bit-trial) on a SUSE Linux 15.5 with Wine 8.0 (as Windows 7 emulation). You have to install the Oracle Instantclient for Windows on Wine too (unzip all in a folder of the drive C:, set the correct folder of oci.dll within the PLSQL settings). Also I have used in a Bash


to install a specific library and the Microsoft core fonts on Wine before you can start PLSQLDev.
I don't have installed PLSQLDev plugins at the moment and I didn't use all functionalities, but a lot of things will work. On other DB tools in Linux (like DBeaver) I miss the MDI interface, so it is better to use the original PLSQLDev.

On Winecfg you could also disable the window decoration (uncheck on the Graphics tab the "allow window manager to decorate windows). This removes the Linux window borders around the PLSQLdev window (which overlay some icons at the top/left).

Best regards