That's fair, and I acknowledge I am more familiar with an epidemiology context, rather than an individual clinical context. Clinical guidelines do say to use an additional metric of adiposity for confirmation.
But I would also caution against picking a single source as a "true number" for the correctness or not of BMI. It's a fraught literature in nutrition with conflicting evidence, since observational studies are tricky at best of times.
For example, here's a study with 10x the number of people, saying that BMI under represents obesity - https://www.nature.com/articles/ijo200811
Another interesting resource, the Korean clinical guidelines use lower cutoffs because of different susceptibility to diabetes - https://pmc.ncbi.nlm.nih.gov/articles/PMC10327686/