Most of the current long term cases are in people without vaccination - either because they refused, or simply because it wasn’t available at the time.
There is a lasting immunity, or better, the residual immunity lasts long enough until the next wave/winter hits. Especially the amount of severe or long covid cases drops drastically.
Freedom can mean pretty much anything that could be affected by “measures”. Lockdowns might be the most obvious case, but even mask mandates are limiting how and where you can go, they also put financial (and environmental) strains on people. Stay at home orders for infected people are also pretty drastic reductions of freedom.