Both Ubuntu and Fedora have made it official: support is coming soon for running local generative AI instances.
An epic and still-growing thread in the Fedora forums states one of the goals for the next version: the Fedora AI Developer Desktop Objective. It is causing some discontent, and at least one Fedora contributor, SUSE’s Fernando Mancera, has resigned.
Correct: you don’t. I’m basing this only off what you wrote, but I’m reasonably confident of my answer. Glad I could answer the question as asked.