the star with the most confirmed planets orbiting it is TRAPPIST-1, an ultra-cool red dwarf located about 39 light-years away from Earth. As of that time, seven planets had been confirmed in orbit around TRAPPIST-1, with the potential for additional planets in the system.
Determining the star with the least number of planets is a bit challenging, as it depends on the available data and ongoing discoveries. However, it is worth noting that many stars have been observed with no confirmed planets to date. The number of planets detected around a star depends on various factors, including the sensitivity of the observation methods used, the duration and frequency of observations, and the characteristics of the star itself.
there may have been new discoveries since then that could alter the current understanding of the star systems with the most and least number of planets. I recommend checking the latest scientific resources or news platforms specializing in exoplanet discoveries for the most up-to-date information on this topic.