I currently use the Wine Explorer to launch an application every time I start FFXIV. I could probably find exactly how to set up a script to run what I need (https://github.com/0e4ef622/wine-discord-ipc-bridge/ specifically, for the Discord Rich Presence plugin to work on Linux), but it would be really nice to be able to set certain applications to run in Wine whenever I run FFXIV via the launcher, and I'm sure there's all sorts of other power user gremlins who'd also love this.
Definitely not some high priority need, of course.