GIMP Plugins from third parties

Hi,
I’m just a new user of the snap of gimp 2.10.8. I need to use my own plugins, and though I put them in /home/frohro/snap/gimp/110/.config/GIMP/2.10/plug-ins, they don’t show up.
Am I to understand that it is not possible to use my own plugins with a snap install of gimp? This is sad if true, because gimp and mypaint cannot coexist when installed from the package manager on Ubuntu 18.10. My workaround was to try the snap for gimp.
Thanks,
Rob