The following instructions will give you a context menu that offers the option to open the WSL Bash in the current folder.
Windows 10 has no build in support for graphical programs on WSL. The WSL Bash is intended for running command-line programs that developers might need, but it is also possible to run graphical Linux desktop programs. You will be able to display graphical programs running in WSL on a Windows 10 desktop by using an X server (.. running on Windows 10). Continue reading Running Graphical Programs on WSL