Someone posted a ChatGPT answer, which seems a pretty good response:

Energy Efficiency: Superconductors conduct electricity without resistance, which means they don't produce heat as a byproduct. This could make electronic devices more energy-efficient and help them run cooler, which could extend battery life in mobile devices and potentially reduce the need for cooling in larger devices like computers.

Processing Speed: Superconducting circuits could potentially operate at higher speeds than conventional circuits, which could lead to faster processors and more powerful computers and smartphones.

Data Storage: Superconductors could also be used to create more efficient and compact data storage devices. For example, they could be used in the development of Magnetic Random Access Memory (MRAM), a type of non-volatile memory that uses magnetic states to store information. This could potentially offer faster and more energy-efficient data storage than current technologies.

Quantum Computing: Superconductors are already used in some types of quantum computers, which use the principles of quantum mechanics to perform complex calculations much more quickly than conventional computers. A room-temperature superconductor could make quantum computers more practical and affordable, which could have a profound impact on many areas of technology and science.

Power Transmission: Superconductors can transmit electricity without any loss, which could dramatically increase the efficiency of power grids. This could reduce energy costs, decrease greenhouse gas emissions, and make renewable energy sources more viable.

Magnetic Levitation (Maglev) Trains: Superconductors can produce powerful magnetic fields, which can be used to levitate trains above their tracks, reducing friction and allowing for higher speeds. Current maglev trains already use superconductors, but they require cooling to very low temperatures, which is expensive and energy-intensive. Room-temperature superconductors could make maglev trains more practical and affordable.

Medical Imaging and Therapy: Superconductors are used in Magnetic Resonance Imaging (MRI) machines to generate the strong magnetic fields required for imaging. Room-temperature superconductors could make MRI machines cheaper, more efficient, and more accessible. They could also be used in other medical technologies, such as particle beam therapies for cancer treatment.

Scientific Research: Superconductors are used in a variety of scientific instruments, such as particle accelerators and detectors. Room-temperature superconductors could make these instruments more efficient and less expensive to operate.

Electric Vehicles (EVs): Superconductors could be used to make more efficient electric motors and batteries for electric vehicles, potentially increasing their range and reducing their cost.

Telecommunications: Superconductors could be used to create more efficient and higher-capacity communication networks, potentially improving internet speeds and reducing latency.

Aerospace and Defense: Superconductors could be used in a variety of aerospace and defense applications, such as advanced radar systems, satellite technologies, and even propulsion systems.