Guidelines exist for a reason
"How to manage type 2 diabetes" is not something that should be up for debate in 2021.
Ah yes, diabetes. It's one of these timeless diseases that has affected humans for millennia, and because of how common it is (more than 10% of the US population according to the American Diabetes Association) the myriad multisystem complications that can arise if left undiagnosed and untreated, it's one of the most-studied conditions in medicine. Guidelines have been devised and revised over the years. It's covered extensively in medical school, and virtually all primary care physicians are familiar with how to initiate and manage diabetes (especially type 2). It's something that every family medicine and internal medicine resident would be expected to know cold before finishing residency.
In summary, "how to manage type 2 diabetes" is NOT a question any competent health care professional should be asking on a Facebook group. Especially not in 2021 It's not something that you should be "curious to see" other people's thoughts and opinions on. Guidelines exist for a reason. Medical school, residency, physicians, and endocrinology fellowships exist for a reason. Read the guidelines. Follow them. And if you can't do that, then refer to a physician who does.