A Study Evaluating the Effect of Daily Oral RO7795081 in Participants With Obesity or Overweight With at Least One Weight-Related Comorbidity

Inclusion Criteria: * Participants must have at screening: 1. Body mass index (BMI) greater than or equal to (≥)30.0 kg/m\^2; or 2. BMI ≥27.0 kg/m\^2 and \<30.0 kg/m\^2 with at least one weight-related comorbidity, such as hypertension, dyslipidemia, diagnosis of obstructive sleep apnea, cardiovascular disease * History of ≥1 self-reported unsuccessful diet/exercise effort to lose body weight * A stable body weight for the 3 months prior to screening (maximum 5% body weight gain and/or loss) Exclusion Criteria: * Have a history or diagnosis of any type of diabetes mellitus (Type 1 diabetes \[T1D\], T2D, or rare forms of diabetes) * Have obesity induced by other endocrinologic disorders (e.g., Cushing's syndrome) or diagnosed monogenetic or syndromic forms of obesity (e.g., melanocortin-4 receptor deficiency or Prader-Willi Syndrome) * Participation in unbalanced/extreme diets or in an organized weight reduction program within 3 months of the screening visit or planning to engage in such diets or programs during the study * Prior or planned surgical treatment for obesity * Have a known, clinically significant gastric emptying abnormality * Have poorly controlled hypertension, untreated renal artery stenosis, or evidence of labile blood pressure including symptomatic postural hypotension * Have any of the following cardiovascular conditions within 3 months prior to screening: Acute myocardial infarction; Cerebrovascular accident (stroke)/transient ischemic attack; Unstable angina; Hospitalization due to congestive heart failure. * Have a history of acute or chronic pancreatitis * Have a history of significant active or unstable major depressive disorder (MDD) or other severe psychiatric disorder (e.g., schizophrenia, bipolar disorder, or other serious mood or anxiety disorder), or had a suicide attempt within the last 1 year of screening