My wife and I were lucky enough to be able to purchase a home at a decent rate and then refinance a few years later to an even better rate (around 3.5%). We bought in 2019, when the world was still somewhat sane. The thought of trying to sell and get a new home at the higher rate makes me sick to my stomach and I feel bad for my brother-in-law.
We bought in 2016 with 50k down at 3.5% and our payments were $2,800. We refinanced and now our payments are $2,400. Zillow says if we bought our same house today, at today's rate with the same amount down the payments would be $7,700, an utterly unfathomable amount.