Is a persistent current in a room-temperature superconductor a perpetuum mobile?

Persistent currents can be induced in superconductors that have no decay in current over the period of observation withing the measurement errors. (see for example this book chapter)

I always thought that this is not a true "perpetuum mobile of the third kind", as one has to put in energy to conserve the superconductive properties of the conductor by continually cooling it. But with the advent of the "room-temperature superconductor" recently I am no longer sure if that thought holds.

Is a persistent current in a room-temperature superconductor truly a example of a system where one has eliminated friction and does not have to input any energy? Or is there any hidden energy expenditure needed, that I am just not seeing?