The goal of this study is to test the effectiveness, safety, and tolerability of the combination of broadly neutralizing antibodies (bNAbs) (teropavimab (TAB; GS-5423) and zinlirvimab (ZAB; GS-2872)) with lenacapavir (LEN) in virologically suppressed adults with HIV-1 infection. The purpose of this study is to evaluate the efficacy of switching to a regimen of LEN, TAB and ZAB, versus continuing on baseline oral antiretroviral therapy (ART) as determined by the proportion of participants with human immunodeficiency virus-1 (HIV-1) ribonucleic acid (RNA) ≥ 50 copies/mL at Week 26.