Also, I had some SS credit so my net monthly payment is $2480 after Medicare Part B. Expect to pay another $70/month for Medicare Part D (prescriptions) and $630/month for Medicare Medigap (F or G usually), so that leaves about $1800.

Never get Medicare Advantage, it's a scam. Also, traditional Medicare in 5 states is a scam because of the care-denying, for-profit WISeR prior-authorization AI bullshit. Medicare doesn't include vision, dental, hearing, hearing aids, or long-term care.