 trihybrid nanofluids, THNFs, can achieve a higher heat transfer rate than conventional hybrid nanofluids by combining three different nanoparticles with synergistic effects. These nanoparticles can have more diverse physical and thermal properties when chosen from a variety of combinations. This makes THNFs more versatile and applicable in various fields such as solar thermal, biomedical, and industrial processes. Additionally, vortices are circular motions of liquid or gas that occur when there is a velocity difference. Vortices are important for understanding how fluids mix and transport mass. They can be found in nature, such as in tornadoes and hurricanes. The aim of the current study is to primarily investigate the complex interaction of Lorentz force with the trihybrid nanoparticles inside a lid-driven square cavity. The magnetic field has caused the evolution of new vortices in the flow field, thus adding much more significance to our work. Most of the scientific literature is enriched with investigations dealing with the problems assuming a uniform magnetic field, occupying the flow field, but in this research, a vertical strip of magnetism within the flow field will be introduced. This may be the... This article is authored by Ahmad Shabir, Takana Haida Mesa, Ali Kashif, and others. We are article.tv, links in the description below.