devtrackers.gg
Disclaimer: While I often use Linux, I do not use it for gaming. I have not investigated what I’m about to say.
CCP has been trying to break apart our monolith for a while. Skill plans were one of the first things to get this treatment. There is a devblog over here that has some information that may be of interest: Introducing Quasar | EVE Online
My guess is that the gRPC module is not working under Wine. The client is designed to fail “safely” and give the user an error when it is not able to connect to the requested service. In the future, more things will make use of gRPC + a dedicated service for that feature. This reduces the need for everything to go through TQ and its database.
A starting point would be to see if ‘client_grpc.pyd’ is loaded / having issues under Wine.