oh, huh. Maybe it’s a SystemD service then, which would be disableable with sudo systemctrl disable akonadi

really? usually KDE based distros have it preinstalled, in Kubuntu for example there’s literally an app called “system services” or “background services” where you can do this. but i’m glad you figured it out

It’s not. look up “services” in your app launcher

Disable it by going to “system services” and disabling it