Whenever I try to set the application to French in the settings, English stays. All my locales are fr_FR.UTF-8. I use the eopkg package. Flatpak works for that behavior and follows either the system language by default or the French language if I set it.
I've posted an issuer there and the developer told me to turn to Solus maintainers. https://github.com/pbek/QOwnNotes/issues/2043
Anyone with the same problem or a workaround? Thanks!